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WorksheetsTiếng Anh kĩ thuật điện
Total questions: 187
Worksheet time: 2hrs 36mins
U1: ELECTRONS
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What is the correct definition and Vietnamese meaning of "matter"?
The smallest unit of matter (nguyên tử)
Physical substance in the universe (vật chất)
A subatomic particle of about the same mass as a proton (nơ-t-rông)
A material (chất)
What is the correct definition and Vietnamese meaning of "atom"?
A force between charges (lực hút)
The smallest unit of matter (a chemical element) (nguyên tử)
A grouping of electrons in a shell (lớp vỏ điện tử)
A molecule made from multiple substances (phân tử)
What is the correct definition and Vietnamese meaning of "substance"?
A material (chất)
A charged atomic particle (điện tích)
A very small particle inside an atom (hạt hạ nguyên tử)
A unit of energy (năng lượng)
What is the correct definition and Vietnamese meaning of "molecule"?
A nucleus containing protons and neutrons (hạt nhân)
A shell of electrons around the atom (lớp vỏ điện tử)
A group of atoms forming the smallest unit of a substance (phân tử)
An area where electric force is detected (điện trường)
What is the correct definition and Vietnamese meaning of "nanoparticle"?
A force that repels like charges (lực đẩy)
A small particle between 1-100 nanometers with unique properties (hạt nano)
A cloud of electrons surrounding a nucleus (đám mây điện tử)
An electric charge carried by ions (điện tích)
What is the correct definition and Vietnamese meaning of "subatomic particle"?
A very small piece of matter inside or smaller than an atom (hạt hạ nguyên tử)
A type of molecule (phân tử)
An energy level of an atom (lớp năng lượng)
A combination of atoms forming a substance (chất)
What is the correct definition and Vietnamese meaning of "neutron"?
A negatively charged particle (điện tử)
A particle with positive charge (proton)
A subatomic particle with no electric charge, same mass as a proton (nơ-t-rông)
The central part of the atom (hạt nhân)
What is the correct definition and Vietnamese meaning of "nucleus"?
The positively charged central core of an atom (hạt nhân)
The outer shell of an atom (lớp vỏ điện tử)
A charged subatomic particle (ion)
A region of stable atomic force (điện trường)
What is the correct definition and Vietnamese meaning of "isotope"?
Atoms with the same number of protons but different numbers of neutrons (đồng vị)
A neutral atomic particle (nơ-t-rông)
A small magnetic force (lực từ nhỏ)
Charged clouds of electrons (đám mây điện tử)
What is the correct definition and Vietnamese meaning of "centrifugal force"?
An electric force attracting two charges (lực hút)
An apparent outward force on a rotating body (lực ly tâm)
A type of magnetic field (từ trường)
A molecule spinning in place (phân tử quay)
What is the correct definition and Vietnamese meaning of "attraction force" or "attractive force"?
A force that pulls objects together due to attraction (lực hút)
A field where electrons spin (điện trường)
A negative particle inside the atom (điện tử)
A kind of matter in space (vật chất)
What is the correct definition and Vietnamese meaning of "electrostatic"?
Related to electric charges that are not moving (tĩnh điện)
A positively charged particle in the nucleus (proton)
A flow of electric current in circuits (dòng điện)
The field created by a magnetic force (từ trường)
What is the correct definition and Vietnamese meaning of "electric charge"?
A property of matter causing it to feel force in an electromagnetic field (điện tích)
The movement of atoms (chuyển động nguyên tử)
A small particle between 1–100 nm (hạt nano)
D. The total energy of an atom (năng lượng nguyên tử)
What is the correct definition and Vietnamese meaning of "electric field"?
The space where light energy is produced (trường ánh sáng)
The region around a charged object where electric force is felt (điện trường)
The area where atoms repel each other (khu vực đẩy)
The cloud of electrons around a nucleus (đám mây điện tử)
What is the correct definition and Vietnamese meaning of "electron"?
A group of protons and neutrons (hạt nhân)
A particle with no charge (nơ-t-rông)
A layer of molecules (lớp phân tử)
A negatively charged subatomic particle found in all atoms (điện tử)
What is the correct definition and Vietnamese meaning of "electron cloud"?
The total space in an electric field (điện trường)
The positive central core of an atom (hạt nhân)
The region around the nucleus where electrons are likely to be found (đám mây điện tử)
A type of energy used in ionization (năng lượng i-ông hóa)
What is the correct definition and Vietnamese meaning of "electron shell"?
A grouping of electrons around the nucleus of an atom (lớp vỏ điện tử)
The space of neutrons in an atom (vùng nơ-t-rông)
A combination of different atoms (phân tử)
A shell of ions formed during bonding (vỏ i-ông)
What is the correct definition and Vietnamese meaning of "ionization"?
The removal of the nucleus (phân tách hạt nhân)
The movement of atoms in a field (chuyển động nguyên tử)
The process by which neutral atoms or molecules become charged (i-ông hóa)
The process by which neutral atoms or molecules become charged (i-ông hóa
What is the correct definition and Vietnamese meaning of "ionization energy"?
The total energy of a molecule (năng lượng phân tử)
The energy required to remove an electron from an atom or molecule (năng lượng i-ông hóa)
The force between like charges (lực đẩy)
The electric charge of a neutral atom (điện tích trung hòa)
What is the correct definition and Vietnamese meaning of "like charge"?
Two charges that attract each other (điện tích trái dấu)
Two charges that repel each other (điện tích cùng dấu)
A subatomic particle with no charge (nơ-t-rông)
A region of balanced electric field (điện trường cân bằng)
What is the correct definition and Vietnamese meaning of "unlike charge"?
Two charges that attract each other (điện tích trái dấu)
Two charges that repel each other (điện tích cùng dấu)
A group of neutrons (nhóm nơ-t-rông)
A shell of electrons (lớp vỏ điện tử)
U2: ELECTRIC CURRENT
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NOT READY
What is the correct definition and Vietnamese meaning of "Electric current"?
The difference in electric potential (Hiệu điện thế)
A flow of negative charge from negative to positive (Dòng điện)
A machine that produces electricity (Máy phát)
The outermost orbit of electrons (Vòng hóa trị)
What is the correct definition and Vietnamese meaning of "Conventional current"?
A flow of positive charge from positive to negative (Dòng điện qui ước)
The amount of current per second (Cường độ dòng điện)
A cycle of alternating charge (Chu kì)
Resistance to flow (Trở kháng)
What is the correct definition and Vietnamese meaning of "Direct current"?
Electric charge changes direction periodically (Dòng điện xoay chiều)
Electric charge flows in both directions (Điện tích kép)
Electric charge flows in one direction (Dòng điện 1 chiều)
A homogeneous mixture (Dung dịch)
What is the correct definition and Vietnamese meaning of "Alternating current (AC)"?
Electric charge only flows one way (Dòng điện 1 chiều)
Current with varying voltage (Điện áp thay đổi)
Electric charge changes direction periodically (Dòng điện xoay chiều)
Current from generators (Dòng máy phát)
What is the correct definition and Vietnamese meaning of "Cycle / period"?
Distance from crest to rest (Biên độ)
Number of waves per second (Tần số)
Time for 1 complete vibrational cycle (Chu kì)
Electric energy transfer (Năng lượng điện)
What is the correct definition and Vietnamese meaning of "Amplitude"?
Number of wave cycles per second (Tần số)
The maximum distance from rest to crest (Biên độ)
Energy stored in a wave (Năng lượng sóng)
Voltage variation (Biến đổi điện áp)
What is the correct definition and Vietnamese meaning of "Frequency"?
Maximum wave height (Biên độ)
The number of cycles per second (Tần số)
Total wave energy (Tổng năng lượng sóng)
One full vibrational motion (Chu kì)
What is the correct definition and Vietnamese meaning of "Conductor"?
A substance that blocks current (Vật cách điện)
A material with medium conductivity (Chất bán dẫn)
. A substance with many free electrons (Vật dẫn điện)
A wave particle mover (Hạt sóng)
What is the correct definition and Vietnamese meaning of "Semiconductor"?
Material with medium electrical conductivity (Chất bán dẫn)
A perfect conductor (Vật dẫn điện hoàn hảo)
An insulator (Vật cách điện)
Energy wave moderator (Điều hòa sóng năng lượng)
What is the correct definition and Vietnamese meaning of "Insulator"?
Material or device that doesn’t let electric current flow easily (Vật cách điện)
Material that allows electricity to flow freely (Vật dẫn điện)
A mixture of ions and electrons (Dung dịch)
Machine that generates voltage (Máy phát)
What is the correct definition and Vietnamese meaning of "Current intensity"?
A measurement of voltage (Điện áp)
The charge passing through a conductor per second (Cường độ dòng điện)
The opposition to electric flow (Trở kháng)
An outer electron shell (Lớp vỏ điện tử)
What is the correct definition and Vietnamese meaning of "Electrode"?
Point where electric current enters or exits (Điện cực)
Part of the electric field (Điện trường)
Resistance of a material (Điện trở suất)
Current direction unit (Đơn vị hướng dòng)
What is the correct definition and Vietnamese meaning of "Generator"?
A resistor used in circuits (Điện trở)
A machine that produces electrical power (Máy phát)
A network of atoms (Mạng tinh thể)
A directional flow of energy (Hướng năng lượng)
What is the correct definition and Vietnamese meaning of "Lattice"?
A loose atomic structure (Cấu trúc rời rạc)
A complete vibrational wave (Chu kỳ rung)
Continuous atomic bonding framework (Dạng lưới, mạng tinh thể)
A positively charged ion (Ion dương)
What is the correct definition and Vietnamese meaning of "Valance ring"?
Inner orbital (Quỹ đạo trong)
The outermost orbit of an atom (Vòng hóa trị)
An electrical generator coil (Cuộn máy phát)
A vibrational energy loop (Vòng rung động)
What is the correct definition and Vietnamese meaning of "Potential difference"?
A form of kinetic energy (Năng lượng động)
The difference in electric potential (Hiệu điện thế)
The resistance in a conductor
Number of electrons in a shell
What is the correct definition and Vietnamese meaning of "Voltage"?
Measurement of charge force in a circuit (Điện áp)
Amount of electrons present (Số lượng electron)
Number of cycles per second (Tần số)
Movement of atoms (Chuyển động nguyên tử)
What is the correct definition and Vietnamese meaning of "Resistance"?
The ease of current flow (Dễ dẫn điện)
The degree a substance opposes current flow (Trở kháng)
Speed of electric charge (Tốc độ điện tích)
Number of resistors in circuit (Số điện trở)
What is the correct definition and Vietnamese meaning of "Resistivity"?
Electrical energy loss rate (Tỷ lệ mất năng lượng)
The resistance per unit length and cross-section (Điện trở suất
Maximum voltage (Điện áp cực đại)
Minimum energy flow (Năng lượng tối thiểu)
What is the correct definition and Vietnamese meaning of "Solution"?
A chemical reaction output (Sản phẩm phản ứng)
Molecular lattice (Mạng phân tử)
a homogeneous mixture of 2 or more components in which the particle size is smaller than 1 nm (Dung dịch)
Atom bonding energy (Năng lượng liên kết nguyên tử)
U3: BATTERIES & CELL
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NOT READY
What is the correct definition and Vietnamese meaning of "electrodes"?
the electrode where oxidation occurs and electrons are released (cực dương)
a number of cells connected together (bộ pin)
conductive materials that allow current or exit an electrochemical cell (điện cực)
the phenomenon where a battery "remembers" a smaller capacity if repeatedly partially discharged (hiệu ứng bộ nhớ)
What is the correct definition and Vietnamese meaning of "anode"?
the electrode where oxidation occurs and electrons are released (cực dương)
the ouet shell that protects the internal componets of a battery or cell (vỏ bọc)
capable of returning to the original state or condition (có thể đảo ngược)
a measure of electrical resistance of a substance (điện trở suất)
What is the correct definition and Vietnamese meaning of "cathode"?
a chemical reaction involving the transfer of electrons (phản ứng oxi hóa khử)
the elctrode where reduction occurs and electrons are gained (cực âm)
reduce voltage (biến thế)
a telephone that uses a landline (điện thoại cố định)
What is the correct definition and Vietnamese meaning of "electrolyte"?
a substance containing free ions that make the solution conductive (chất điện phân)
the electrode where oxidation occurs (cực dương)
a material that separates the anode and cathode (tấm ngăn)
the process of using electrical energy to drive a chemical reaction (điện phân)
What is the correct definition and Vietnamese meaning of "separator"?
capable of returning to the original state (có thể đảo ngược)
the pathway electrons travel outside the cell (mạch ngoài)
a material that physically separates the anode and cathode while allowing ionic movement (tấm ngăn)
The amount of energy per unit volume (mật độ năng lượng)
What is the correct definition and Vietnamese meaning of "casing"?
a closed system of wires (mạch)
the ouet shell that protects the internal componets of a battery or cell (vỏ bọc)
a machine that converts AC to DC (chỉnh lưu)
a cell that stores electricity (pin)
What is the correct definition and Vietnamese meaning of "redox reaction"?
chemical process that frees a metal (mạ điện)
a chemical reaction involving the transfer of electrons between two substances (phản ứng oxi hóa khử)
current from negative to positive (dòng điện)
wave movement from peak to peak (chu kỳ)
What is the correct definition and Vietnamese meaning of "ionic movemnet"?
motion of atoms in lattice (chuyển động mạng tinh thể)
the flow of ions within an electrolyte or between electrodes (sự di chuyển ion)
external path of electricity (mạch ngoài)
flow of electrons between metals (dòng điện)
What is the correct definition and Vietnamese meaning of "high energy density"?
the resistance to electron flow (điện trở)
. the amount of energy stored in a given system or space per unit volume (mật độ năng lượng cao)
the time a product is stored (thời gian lưu trữ)
the process of electrical oxidation (điện phân)
What is the correct definition and Vietnamese meaning of "electrochemistry"?
the study of the atom (nguyên tử học)
the study of chemical processes that cause electrons to move (điện hóa)
the resistance inside a battery (điện trở trong)
study of conductivity in plastics (chất dẫn điện)
What is the correct definition and Vietnamese meaning of "electrolysis"?
the process of using electrical energy to drive a non-spontaneous chemical reaction (điện phân)
a substance containing free ions (chất điện phân)
a number of cells connected together (bộ pin)
the movement of electrons in a conductor (dẫn điện)
What is the correct definition and Vietnamese meaning of "electroplating"?
the flow of ions within an electrolyte (sự di chuyển ion)
the process of depositing a layer of metal onto a surface using an electric current (mạ điện)
the resistance within a battery (điện trở trong)
a homogeneous ionic solution (dung dịch ion)
What is the correct definition and Vietnamese meaning of "conduction"?
the amount of energy per unit volume (mật độ năng lượng)
the process by which electric current or heat flows through a material (dẫn điện)
the time a battery lasts (thời gian lưu trữ)
the outer shell of a cell (vỏ bọc)
What is the correct definition and Vietnamese meaning of "deposit"?
to form a layer of material on a surface (kết tủa)
to remove energy from a reaction (giải nhiệt)
to separate two charges (phân ly)
to stop the flow of electricity (ngắt điện)
What is the correct definition and Vietnamese meaning of "liberate"?
to gain electrons (khử)
to form a gas from liquid (bay hơi)
o release or free from a combined state (phân li)
to mix substances together (trộn)
What is the correct definition and Vietnamese meaning of "cell"?
the electrode that gains electrons (cực âm)
the most compact sources of electric power, producing electricity from chemical actions (pin)
a machine that stores energy (máy phát)
a flow of charge in one direction (dòng điện một chiều)
What is the correct definition and Vietnamese meaning of "galvanic cells"?
batteries with non-rechargeable components (pin dùng một lần)
the chemical solution inside a battery (chất điện phân)
two conductors placed in an acid (điện cực)
electrochemical cells that generate electrical energy from spontaneous redox reactions (pin galvanic)
What is the correct definition and Vietnamese meaning of "battery"?
the outer case of a cell (vỏ bọc)
a number of cells connected together (bộ pin)
the movement of ions (sự di chuyển ion)
a redox reaction that produces gas (phản ứng sinh khí)
What is the correct definition and Vietnamese meaning of "ionic solution"?
a liquid containing ions that can conduct electricity (dung dịch ion)
a solution of only water (nước tinh khiết)
a mixture of solids (hỗn hợp rắn)
a chemical without conductivity (chất không dẫn điện)
What is the correct definition and Vietnamese meaning of "external circuit"?
the wires inside a battery (dây dẫn trong)
the electrode where reduction occurs (cực âm)
the pathway outside the electrochemical cell that electrons travel through (mạch ngoài)
the part that holds the chemical solution (ngăn chứa)
What is the correct definition and Vietnamese meaning of "reversible"?
capable of returning to the original state or condition (có thể đảo ngược)
unable to conduct electricity (không dẫn điện)
able to resist chemical reaction (chống phản ứng)
producing electrons through friction (tạo điện do ma sát)
What is the correct definition and Vietnamese meaning of "energy density"?
the resistance inside a battery (điện trở trong)
the amount of energy stored in a given system or space per unit volume (mật độ năng lượng)
the rate at which energy flows (công suất)
he movement of electrons through a solid (dòng điện kim loại)
What is the correct definition and Vietnamese meaning of "capacity"?
the length of time a product is stored (thời gian lưu trữ)
the speed of a current (tốc độ dòng điện)
the total amount of electric charge a battery can hold (dung lượng)
the power lost in a circuit (công suất hao hụt)
What is the correct definition and Vietnamese meaning of "shelf life"?
the time a battery lasts when used (tuổi thọ sử dụng)
the length of time a product can be stored without becoming unusable (thời gian lưu trữ)
the time needed to charge a battery (thời gian sạc)
how long a current flows (thời gian dòng điện chạy)
What is the correct definition and Vietnamese meaning of "drain rate"?
the time required for one complete cycle (chu kỳ)
the number of ions moving per second (tốc độ ion)
the rate at which a battery loses its charge during use (tốc độ tiêu hao)
the strength of voltage in a conductor (hiệu điện thế)
What is the correct definition and Vietnamese meaning of "internal resistance"?
the resistance found in wires (điện trở dây dẫn)
the opposition within a battery that impedes the flow of current (điện trở trong)
the total resistance of a circuit (tổng trở kháng)
resistance caused by heat (điện trở nhiệt)
What is the correct definition and Vietnamese meaning of "memory effect"?
the effect of voltage drop in long wires (hiện tượng sụt áp)
. the battery's reduced lifespan due to corrosion (hiệu ứng ăn mòn)
the phenomenon where a battery "remembers" a smaller capacity if repeatedly partially discharged (hiệu ứng bộ nhớ)
the increase in resistance due to frequent use (hiệu ứng sử dụng nhiều)
What is the correct definition and Vietnamese meaning of "heavy duty"?
batteries with longer wire leads (pin dây dài)
The property of batteries that are designed to be stronger and provide more power than standard battery (chịu tải nặng)
batteries used only in computers (pin cho máy tính)
batteries that can’t be recycled (không tái chế)
What is the correct definition and Vietnamese meaning of "cellular telephone"?
a radio receiver (máy thu sóng)
a telephone used in cars (điện thoại xe hơi)
a telephone that can be used anywhere you go because it operates with radio signals (điện thoại di động)
a wired desktop telephone (điện thoại bàn)
What is the correct definition and Vietnamese meaning of "alloy"?
A metal that rusts easily (kim loại dễ gỉ)
The mixture of two or more metals, or a metal and another substance (hợp kim)
A gas formed from heating metal (khí kim loại)
The separation of metals by electricity (điện phân kim loại)
What is the correct definition and Vietnamese meaning of "carcinogenic"?
causing explosion (gây nổ)
causing heat generation (gây sinh nhiệt)
The property of a substance that causes cancer (gây ung thư)
producing electromagnetic waves (phát sóng điện từ)
What is the correct definition and Vietnamese meaning of "cordless telephone"?
A portable telephone using radio waves to communicate with a base station (điện thoại không dây)
A telephone that connects directly to the internet (điện thoại mạng)
A landline with long cables (điện thoại dây dài)
A telephone that requires charging every hour (điện thoại cần sạc mỗi giờ)
What is the correct definition and Vietnamese meaning of "transformer"?
. convert AC to DC (chỉnh lưu)
reduce voltage (biến thế)
change a signal into sound (bộ chuyển âm)
prevent overcharge (chống sạc quá mức)
What is the correct definition and Vietnamese meaning of "rectifier"?
convert AC to DC (chỉnh lưu)
boost current speed (tăng tốc dòng điện)
measure battery charge (đo dung lượng)
invert voltage polarity (đảo cực điện áp)
What is the correct definition and Vietnamese meaning of "circuit"?
A battery used in small devices (pin mini)
a closed system of wires or pipes through which electricity or liquid can flow (mạch)
a single wire for testing voltage (dây thử điện)
a switch to open and close a path (công tắc mạch)
U4: SOURCES OF POWER
READY
NOT READY
A two-terminal electrical device that can store energy in the form of an electric charge
Condenser (Thiết bị ngưng tụ)
Capacitor (Tụ điện)
Transformer (Máy biến thế)
Dielectric (Điện môi)
Substance that makes a chemical reaction happen more without itself being changed
Catalyst (Chất xúc tác)
Electrolyte (Chất điện phân)
Solution (Dung dịch)
Alloy (Hợp kim)
Electrical component used to store and release electrical energy in a circuit
Capacitor (Tụ điện)
Condenser (Thiết bị ngưng tụ)
Generator (Máy phát)
Electrode (Điện cực)
Material that does not conduct electricity but can become polarized when exposed to an electric field
Dielectric (Điện môi)
Conductor (Vật dẫn điện)
Semiconductor (Chất bán dẫn)
Insulator (Vật cách điện)
Electricity generated by harnessing the gravitational force of falling or flowing water
Hydroelectricity (Thuỷ điện)
Photovoltaic cell (Pin quang điện hoá)
Thermal energy (Nhiệt năng)
Wind energy (Năng lượng gió)
Tiny particle of light that is the basic unit of electromagnetic radiation and carries energy
Neutron (Nơ-t-rông)
Ion (Ion)
Photon (Hạt Photon)
Electron (Điện tử)
. Semiconductor device that converts light energy directly into electrical energy
Photovoltaic cell (Pin quang điện hoá)
Transformer (Máy biến thế)
Battery (Bộ pin)
Capacitor (Tụ điện)
Device that provides electrical power to other devices or systems
Power supply unit (Bộ nguồn)
Condenser (Thiết bị ngưng tụ)
Generator (Máy phát)
Transformer (Máy biến thế)
The initial circuit through which electrical energy flows from a power source
Secondary loop (Mạch thứ cấp)
Primary loop (Mạch sơ cấp)
Circuit (Mạch)
Voltage source (Nguồn điện áp)
A separate circuit that receives energy from the primary loop and may further distribute or transform it
Transformer (Máy biến thế)
Capacitor (Tụ điện)
Secondary loop (Mạch thứ cấp)
Generator (Máy phát)
Electrical device used to change the voltage of alternating current (AC)
Power supply unit (Bộ nguồn)
Rectifier (Chỉnh lưu)
Capacitor (Tụ điện)
Transformer (Máy biến thế)
U5: MAINS ELECTRICITY, PLUGS & FUSES
READY
NOT READY
Insulating sleeves used to protect cables and equipment from high voltage
Solenoid (Cuộn từ)
Bushings (Ống bọc cách điện)
Socket (Ổ cắm)
Pivot (Chốt)
An insulated electrical conductor used to transmit electricity
. Cable (Cáp)
Plug (Phích cắm
Cartridge fuse (Cầu chì hộp)
Electromagnet (Nam châm điện)
A type of fuse enclosed in a replaceable cartridge
Fuse (Cầu chì
Cartridge fuse (Cầu chì hộp)
Circuit breaker (Cầu dao tự động
Magnetic circuit breaker (Role từ)
A safety device that automatically switches off the circuit if too much current flows
Socket (Ổ cắm)
Switch (Thiết bị chuyển mạch)
Circuit breaker (Cầu dao tự động)
Pivot (Chốt)
A temporary magnet created by passing electricity through a coil of wire
Electromagnet (Nam châm điện)
Solenoid (Cuộn từ)
Transformer (Máy biến thế)
Conductor (Vật dẫn điện)
The process by which a changing magnetic field creates an electric current in a nearby conductor
Electromagnetic induction (Cảm ứng điện từ)
Electrolysis (Điện phân)
Conduction (Dẫn điện)
Redox reaction (Phản ứng oxi hóa khử)
A safety device that melts and breaks the circuit if too much current flows
Circuit breaker (Cầu dao tự động)
Cartridge fuse (Cầu chì hộp)
Fuse (Cầu chì)
Socket (Ổ cắm)
Magnetic circuit breaker responds to over-current by lifting the contacts apart using a loading coil
Magnetic circuit breaker (Role từ)
Cartridge fuse (Cầu chì hộp)
Cartridge fuse (Cầu chì hộp)
Circuit breaker (Cầu dao tự động)
Component of circuit breaker, holding the moving contact in place
Pivot (Chốt)
Plug (Phích cắm)
Bushings (Ống bọc cách điện)
Solenoid (Cuộn từ)
Device for making an electrical connection, especially between an appliance and a power supply
. Plug (Phích cắm)
. Cable (Cáp)
Socket (Ổ cắm)
Switch (Thiết bị chuyển mạch)
An electrical device receiving a plug or light bulb to make a connection
Socket (Ổ cắm)
Plug (Phích cắm)
Switch (Thiết bị chuyển mạch)
Cartridge fuse (Cầu chì hộp)
A cylindrical coil of wire acting as a magnet when carrying electric current
Electromagnet (Nam châm điện)
Solenoid (Cuộn từ)
Solenoid (Cuộn từ)
Capacitor (Tụ điện)
A device for making and breaking the connection in an electric circuit
Switch (Thiết bị chuyển mạch)
Circuit breaker (Cầu dao tự động)
Plug (Phích cắm)
Plug (Phích cắm)
U6: ELECTRICITY & MAGNETISM
READY
NOT READY
Frame that is covered to make a figure
Commutator (Thiết bị đảo mạch)
Armature (Lõi phần cứng)
Brushes (Chổi than)
Brushes (Chổi than)
Device for changing the direction in which electricity flows
Electromotive force (Xuất điện động)
Magnetic field line (Đường sức từ)
Magnetic field line (Đường sức từ)
Slip rings (Cổ góp điện)
Materials that repel magnetic fields (example: copper, silver)
Materials that repel magnetic fields (example: copper, silver)
Diamagnetic material (Vật liệu nghịch từ)
Diamagnetic material (Vật liệu nghịch từ)
Magnetism (Từ tính)
The production of a magnetic field by means of an electric current
Magnetism (Từ tính)
Magnetic flux (Từ thông)
Electromagnetism (Điện từ)
Field coil (Cuộn từ)
Energy transfer to an electric circuit per unit of electric charge, measured in volts
Voltage (Điện áp)
Electromotive force (Xuất điện động)
Power supply unit (Bộ nguồn)
Current intensity (Cường độ dòng điện)
An electromagnet used to generate a magnetic field in a machine like a motor
Field coil (Cuộn từ)
Slip rings (Cổ góp điện)
Transformer (Máy biến thế)
Commutator (Thiết bị đảo mạch)
Area around a magnet where there is a force attracting some metals
Magnetic flux (Từ thông)
Magnetic field (Từ trường)
Electromagnetism (Điện từ)
Magnetic pole
Lines that form concentric circles around a current-carrying wire
Magnetic field (Từ trường)
Magnetic pole (Cực từ)
Magnetic field line (Đường sức từ)
Magnetism (Từ tính)
A measurement of the total magnetic field passing through a given area
Magnetic flux (Từ thông)
Electromotive force (Xuất điện động)
Magnetic field (Từ trường)
Paramagnetic material (Vật liệu thuận từ)
A physical property of some metals that causes attraction or repulsion
Magnetism (Từ tính)
Magnetic field (Từ trường)
Electromagnetism (Điện từ)
Magnetic field line (Đường sức từ)
Substances with unpaired electrons that become temporary magnets
Diamagnetic material (Vật liệu nghịch từ)
Magnetic pole (Cực từ)
Paramagnetic material (Vật liệu thuận từ)
Brushes (Chổi than)
Electrical contacts that transfer current between stationary and rotating parts
Slip rings (Cổ góp điện)
Commutator (Thiết bị đảo mạch)
Brushes (Chổi than)
Field coil (Cuộn từ)
The regions at each end of a magnet where the magnetic field is strongest
Magnetic field line (Đường sức từ)
Magnetic pole (Cực từ)
Electromotive force (Xuất điện động)
Magnetism (Từ tính)
A measure of how easily magnetic lines of force pass through a material
Conductivity (Độ dẫn điện)
Resistance (Trở kháng)
Permeability (Từ thẩm)
Magnetic flux (Từ thông)
Device that allows transmission of power and signals from stationary to rotating part
Slip rings (Cổ góp điện)
Commutator (Thiết bị đảo mạch)
Brushes (Chổi than)
Field coil (Cuộn từ)
U7: RESISTOR
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NOT READY
Path for electric current
Electronic circuit (Mạch điện tử)
Electric circuit (Mạch điện)
Filtering (Mạch lọc, mạch tách sóng)
Resistance (Trở kháng)
Kind of electric circuit = path for electric current
Resistor (Điện trở)
Oscillating (Mạch dao động)
Electric circuit (Mạch điện)
Electronic circuit (Mạch điện tử)
To increase the size or effect of something
Filtering (Mạch lọc, mạch tách sóng)
Resistance (Trở kháng)
Amplifying (Khuếch đại)
Trimmer (Điện trở tinh chỉnh)
Electrical device that converts AC to DC
Rectifying (Mạch chỉnh lưu)
Oscillating (Mạch dao động)
Transformer (Máy biến thế)
Capacitor (Tụ điện)
Circuit that creates a continuous, alternating waveform from a DC source
Rectifying (Mạch chỉnh lưu)
Oscillating (Mạch dao động)
Filtering (Mạch lọc)
Nominal resistance (Điện trở danh định)
Circuit that passes or amplifies certain frequencies while attenuating others
Amplifying (Khuếch đại)
Filtering (Mạch lọc, mạch tách sóng)
Resistance (Trở kháng)
Resistor in series (Điện trở nối tiếp)
The resistance to flow of current when voltage is applied
Actual resistance (Điện trở thực tế)
Resistance (Trở kháng)
Tolerance (Dung sai)
Variable resistor (Biến trở)
Combined resistance of two or more resistors in parallel
Resistor in series (Điện trở nối tiếp)
Resistances in parallel (Trở kháng song song)
Filtering (Mạch lọc)
Trimmer (Điện trở tinh chỉnh)
Electrical component that provides resistance in a circuit
Rectifier (Chỉnh lưu)
Trimmer (Điện trở tinh chỉnh)
Resistors (Điện trở)
Amplifying (Khuếch đại)
Formed by connecting resistors end-to-end so current flows through each one in turn
Resistor in series (Điện trở nối tiếp)
Resistances in parallel (Trở kháng song song)
Resistances in parallel (Trở kháng song song)
Nominal resistance (Điện trở danh định)
Resistance of a component in real-world conditions
Tolerance (Dung sai)
Actual resistance (Điện trở thực tế)
Nonlinear resistor (Điện trở phi tuyến)
Rheostats (Biến trở 2 chân)
Maximum allowable deviation from the specified resistance value
Nominal resistance (Điện trở danh định)
Tolerance (Dung sai)
Trimmer (Điện trở tinh chỉnh)
Amplifying (Khuếch đại)
Small adjustable resistor for fine-tuning resistance
Tolerance (Dung sai
Rheostats (Biến trở 2 chân)
Trimmer (Điện trở tinh chỉnh)
Filtering (Mạch lọc
Expected resistance value
Actual resistance (Điện trở thực tế)
Nonlinear resistor (Điện trở phi tuyến)
Nominal resistance (Điện trở danh định)
Variable resistor (Biến trở)
Resistor with a non-linear relationship between voltage and current
Linear resistor (Điện trở tuyến tính)
Nonlinear resistor (Điện trở phi tuyến)
Trimmer (Điện trở tinh chỉnh)
Potentiometer (Chiết áp)
Resistor with a linear relationship between voltage and current
Nonlinear resistor (Điện trở phi tuyến)
Linear resistor (Điện trở tuyến tính)
Tolerance (Dung sai)
Amplifying (Khuếch đại)
Three-terminal resistor used to adjust resistance in circuits
Potentiometer (Chiết áp or biến trở 3 chân)
Rheostats (Biến trở 2 chân)
Trimmer (Điện trở tinh chỉnh)
Filtering (Mạch lọc)
Two-terminal variable resistor used to control electric current
Variable resistor (Biến trở)
Trimmer (Điện trở tinh chỉnh)
Rheostats (Biến trở 2 chân)
Resistor in series (Điện trở nối tiếp)
Resistor whose value can be adjusted manually or electronically
Variable resistor (Biến trở)
Potentiometer (Chiết áp)
Nominal resistance (Điện trở danh định)
Actual resistance (Điện trở thực tế)
U8: Capacitors
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Simple passive device that can store an electrical charge on its plates when connected to a voltage source
Resistor (Điện trở)
Transformer (Máy biến thế)
Capacitor (Tụ điện)
Rectifier (Chỉnh lưu)
Capability of a material object or device to store electric charge, measured in farad
Capacitance (Điện dung)
Resistance (Trở kháng)
Inductance (Độ tự cảm
Reactance (Dung kháng)
Quantity inversely proportional to the rate of change of input voltage applied to the capacitor
Capacitance (Điện dung)
Inductive reactance (Cảm kháng)
Capacitive reactance (Dung kháng)
Impedance (Trở kháng)
A type of capacitor that has a specific capacitance value that cannot be adjusted or varied
Variable capacitor (Tụ xoay)
Electrolytic capacitor (Tụ điện phân cực)
Fixed capacitor (Tụ cố định)
Trimmer capacitor (Tụ tinh chỉnh)
Characteristic quantity representing the ability to oppose alternating current
Capacitance (Điện dung)
Fixed capacitor (Tụ cố định)
Impedance (Trở kháng)
Voltage (Điện áp)
Capacitor whose capacitance can be adjusted within a certain range
Fixed capacitor (Tụ cố định)
Electrolytic capacitor (Tụ điện phân cực)
Variable capacitor (Tụ xoay)
Dielectric capacitor (Tụ điện môi)
Material with poor electrical conductivity but able to store an electrical charge
Conductor (Vật dẫn điện)
Dielectric layer (Chất điện môi)
Semiconductor (Chất bán dẫn)
Insulator (Chất cách điện)
The metal part (e.g., mica, plastic) that allows charge to be stored in a capacitor
Conductive plate (Tấm bản cực)
Dielectric layer (Chất điện môi)
Terminal (Cực)
Electrode (Điện cực)
The ratio of the permittivity of the substance to the permittivity of free space
Electric potential (Điện thế)
Dielectric strength (Độ bền điện môi)
Dielectric constant (Hiệu số điện môi)
Impedance (Trở kháng)
Capacitor that stores large amounts of charge for hours and poses a danger of electric shock
Variable capacitor (Tụ xoay)
Electrolytic capacitor (Tụ điện phân cực)
Fixed capacitor (Tụ cố định)
Ceramic capacitor (Tụ gốm)
U9: INDUCTORS
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Current loss caused by circulating currents induced in conductors exposed to changing magnetic fields
Self-induction (Hiện tượng tự cảm)
Eddy current loss (Thất thoát dòng điện)
Electromagnetic induction (Cảm ứng điện từ)
mpedance (Trở kháng)
Generation of an electric current by changing magnetic fields
Eddy current loss (Thất thoát dòng điện)
Self-induction (Hiện tượng tự cảm)
Electromagnetic induction (Cảm ứng điện từ)
Resonant circuit (Mạch cộng hưởng)
Number of cycles of a periodic signal occurring per second
Frequency (Tần số)
Inductance (Độ tự cảm)
Impedance (Trở kháng)
Self-induction (Hiện tượng tự cảm)
Resistance offered to current flow in a circuit at a specific frequency
Capacitance (Điện dung)
Inductance (Độ tự cảm)
Impedance (Trở kháng)
Resistance (Điện trở)
Current resulting from the phenomenon of electromagnetic induction
Induced current (Dòng điện cảm ứng)
Eddy current (Dòng điện xoáy)
Alternating current (Dòng điện xoay chiều)
Static current (Dòng điện tĩnh)
Tendency of a conductor to oppose changes in current flowing through it
Resistance (Điện trở)
Impedance (Trở kháng)
Inductance (Độ tự cảm)
Capacitance (Điện dung)
Two-terminal passive electrical element that stores energy in a magnetic field
Capacitor (Tụ điện)
Resistor (Điện trở)
Inductor (Cuộn cảm)
Rectifier (Chỉnh lưu)
Measure of how easily magnetic lines of force can pass through a material
Permeability (Độ từ thẩm)
. Conductivity (Độ dẫn điện)
Impedance (Trở kháng)
Reactance (Dung kháng)
Electric circuit that has very low impedance at a certain frequency
Tunning coil (Cuộn cảm chỉnh sóng)
Resonant circuit (Mạch cộng hưởng)
Inductor (Cuộn cảm)
Rectifier circuit (Mạch chỉnh lưu)
Voltage induced in a wire when the current in the wire itself is changing
Mutual induction (Cảm ứng hỗ cảm)
Self induction (Sự tự cảm)
Electromotive force (Xuất điện động)
Induced voltage (Điện áp cảm ứng)
Tendency of a coil to resist current changes within itself by generating an EMF
Self-induction (Hiện tượng tự cảm)
Resonance (Cộng hưởng)
Frequency (Tần số)
Voltage drop (Sụt áp)
A tuner consisting of a coil of variable inductance
Fixed inductor (Cuộn cảm cố định)
Tunning coil (Cuộn cảm chỉnh sóng)
Variable resistor (Biến trở)
Choke coil (Cuộn kháng)
U10 : SEMICONDUCTOR & DIODES
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NOT READY
A circuit that converts AC voltage into pulsating DC voltage using only one half (either positive or negative) of the AC waveform.
Full-wave rectifier (Bộ chỉnh lưu toàn kỳ)
Half-wave rectifier (Chỉnh lưu nửa sóng
Bridge (Cầu chỉnh lưu)
Rectifier diode (Đi-ốt chỉnh lưu)
A semiconductor material in its purest form, with no significant impurities added.
Acceptor impurities (Tạp chất nhận)
Intrinsic semiconductor (Bán dẫn thuần khiết)
Donor impurities (Tạp chất cho)
N-type semiconductor (Chất bán dẫn loại N)
A chemical bond that involves the sharing of electrons to form electron pairs between atoms.
Covalent bond (Liên kết cộng hóa trị)
Ionic bond (Liên kết ion)
Metallic bond (Liên kết kim loại)
Hydrogen bond (Liên kết hidro)
A material with electrical conductivity that falls between that of a good conductor and a good insulator.
Metal (Kim loại)
Semiconductor (Chất bán dẫn)
Superconductor (Siêu dẫn)
Insulator (Chất cách điện)
A two-terminal electronic component that primarily conducts electric current in only one direction.
Diode (Đi ốt)
Resistor (Điện trở)
Transistor (Bóng bán dẫn)
Inductor (Cuộn cảm)
Atoms that have five (5) valence electrons in their outermost electron shell.
Trivalent element (Tạp chất hóa trị ba)
Pentavalent element (Tạp chất hóa trị năm)
Divalent element (Nguyên tố hóa trị hai)
Monovalent element (Nguyên tố hóa trị một)
To intentionally introduce a small amount of impurities into a pure (intrinsic) semiconductor material.
Clean (Làm sạch)
Dope (Pha tạp)
Etch (Khắc)
Bond (Liên kết)
A physical which when added to a semiconductor can form N-type region by allowing the material to gain an extra electron.
Acceptor impurities (Tạp chất nhận)
Donor impurities (Tạp chất cho)
ntrinsic material (Vật liệu thuần khiết)
Pentavalent element (Tạp chất hóa trị năm)
A physical which when added to a semiconductor can form P-type region by creating positive charges.
Acceptor impurities (Tạp chất nhận)
Donor impurities (Tạp chất cho)
rivalent element (Tạp chất hóa trị ba)
Hole (Lỗ trống)
Atoms that have 3 valence electrons in their outermost electron shell.
Pentavalent element (Tạp chất hóa trị năm)
Trivalent element (Tạp chất hóa trị ba)
Bivalent element (Tạp chất hóa trị hai)
Hexavalent element (Tạp chất hóa trị sáu)
A positive charge that can attract a covalent electron from a nearby atom.
Hole (Lỗ trống)
Electron (Điện tử)
Ion (Ion)
Charge carrier (Hạt tải điện)
The negative charge mixture created by doping an intrinsic semiconductor with an electron donor element
P-type semiconductor (Chất bán dẫn loại P)
N-type semiconductor (Chất bán dẫn loại N)
Intrinsic semiconductor (Bán dẫn thuần khiết)
Donor impurities (Tạp chất cho)
The positive charge mixture created by doping an intrinsic semiconductor with an electron acceptor element.
N-type semiconductor (Chất bán dẫn loại N)
P-type semiconductor (Chất bán dẫn loại P)
Hole (Lỗ trống
Intrinsic semiconductor (Bán dẫn thuần khiết)
An arrangement of diode in which the current is allowed to flow through the device.
Reverse-biased (Phân cực nghịch)
Forward-biased (Phân cực thuận
Open circuit (Mạch hở)
Closed circuit (Mạch kín)
An arrangement of diode in which the current is prevented from flowing through the device.
Forward-biased (Phân cực thuận)
Reverse-biased (Phân cực nghịch)
Load (Tải)
Short circuit (Mạch ngắn mạch)
The junction of P-type and N-type in the semiconductor, in which there is neither an excess of electrons nor of holes.
Charge carrier (Hạt tải điện)
Depletion region (Vùng ít điện tích)
Forward-biased region (Vùng phân cực thuận)
Drift region (Vùng trôi)
A type of semiconductor diode designed to convert AC into DC by allowing current to flow predominantly in one direction.
Zener diode (Đi-ốt Zener)
Rectifier diode (Đi-ốt chỉnh lưu)
Schottky diode (Đi-ốt Schottky)
PN-junction diode (Đi-ốt tiếp giáp P-N)
A circuit that converts both the positive and negative halves of an AC input waveform into a pulsating DC output.
Half-wave rectifier (Chỉnh lưu nửa sóng)
Full-wave rectifier (Bộ chỉnh lưu toàn kỳ)
Diode (Đi ốt)
Transistor (Bóng bán dẫn)
A configuration of four or more diodes connected in a loop to form a full-wave rectifier circuit.
Half-wave rectifier (Chỉnh lưu nửa sóng)
PN-junction (Tiếp giáp P-N)
Bridge (Cầu chỉnh lưu)
Rectifier diode (Đi-ốt chỉnh lưu)
The fundamental type of semiconductor diode formed by directly joining a P-type and an N-type material.
Zener diode (Đi-ốt Zener)
Bridge diode (Cầu chỉnh lưu)
PN-junction diode (Đi-ốt tiếp giáp P-N)
Tunnel diode (Đi-ốt đường hầm)
A particle within a material that is free to move and carries an electric charge.
Hole (Lỗ trống)
Charge carrier (Hạt tải điện)
Electron (Điện tử)
Ion (Ion)
