WorksheetsElectrical Units 101
Total questions: 19
Worksheet time: 10mins
Which of the following is a semiconductor?
Silicon
Copper
Iron
Plastic
Electricity can be generated from _________.
wind power
sunlight
water
all of the above
Solar panels transform sunlight into _________.
heat
electricity
motion
sound
Fill in the blank: Atoms are categorized into elements based on their number of _______.
Electrons
Neutrons
Protons
Nuclei
The maximum number of electrons in the third shell is ____.
A) 8
B) 18
C) 32
D) 50
Fill in the blank: Materials that resist the flow of electricity are known as ________.
Conductors
Insulators
Semiconductors
Superconductors
What happens to semiconductors when they are heated?
They become less conductive
They become more conductive
They remain the same
They become insulators.
Which component of a circuit adjusts the flow of electricity?
Source
Path
Load
Control
Fill in the blank: Potential energy in a circuit is similar to _______ in a water system.
flow
pressure
volume
temperature
Fill in the blank: Voltage equals wattage divided by ____.
Current
Power
Resistance
Energy
Which of the following is NOT a part of Watt's Law?
P = I x E
I = P / E
E = P / I
P = E / I
What does voltage measure in Watt's Law?
Pressure
Power
Current
Resistance
Which law uses the formula E/R for amperage?
Ohm's Law
Watt's Law
Kirchhoff's Law
Coulomb's Law
The arrow within the schematic symbol of an NPN or PNP transistor always points towards what material?
Base type
N type
Emmiter
P type
What is a diode?
A Christmas light
An LED
A type of battery
A power supply
A type of switch
What is the primary function of a resistor in an electrical circuit?
To store energy
To increase current
To limit current
To convert AC to DC
Which of the following materials is commonly used as an insulator?
Rubber
Silver
Gold
Aluminum
What is the unit of electrical resistance?
Ohm
Volt
Watt
Ampere
