WorksheetsELECTRONIC
Total questions: 21
Worksheet time: 13mins
What is the function of a diode?
Acts as a current amplifier
Acts as an automatic switch
Stores electric charge
Allows the current to pass in one direction only
The following circuit diagrams show four diodes connected to an a.c power supply.
Which circuit will make the bulb lights up the brightest?
Diagram below shows a cathode being heated by a filament.
Which particle is emitted from the cathode?
Proton
Neutron
Electron
Alpha
Diagram below shows an electronic symbol representing an electronic component.
What is the electronic component?
Diode
Inductor
Resistor
Transistor
Diagram 24 shows four diodes which are connected to form a rectifier. Which wave pattern is produced on the C.R.O. screen?
Which particle is cathode ray?
Electron beam
Gamma ray
Neutron
Alpha particles
Diagram shows a shadow formed on the screen of a Maltese Cross Tube. The shadow is deflected by the magnets.
The direction of the deflection is determined by using
the Fleming’s left hand rule
the Fleming’s right hand rule
the right hand grip rule
Diagram shows the structure of a cathode ray oscilloscope.
Which component, A, B, C, or D causes the electrons to accelerate?
A
B
C
D
The diagram shows a circuit consisting of a diode and a bulb.
When the switch is on, the bulb does not light up.
What needs to be done to light up the bulb?
Replace with a new bulb
Increase the number of dry cells
Reverse the diode connection
Connect a resistor parallel to the bulb
The emission of electrons from the surface of a heated metal is called
Vaporization
Condensation
Cathode emission
Thermionic emission
An electron is accelerated between anode and cathode through a potential difference 8000 V. What is the maximum speed of the electron?
[ e =1.6 x 10 -19 C and m= 9 x 10 -31 ]
5.3 x 107 m s-1
4.3 x 106 m s-1
3.3 x 104 m s-1
2.3 x 103 m s-1
In a vacuum tube, the high voltage across anode and cathode used to
control the fialament temperature
control the number of electrons
produce narrow beam electrons
accelerate electrons with a high speed
Which diagram shows the correct movement of an electron beam in an electric field?
Which of the following diagram shows the bulb does not light up.
What are the traits of a forward biased circuit?
Apakah ciri-ciri bagi litar pincang depan?
The holes will move to n-type, electrons will move to p-type
Lohong akan bergerak ke arah jenis-n manakala elektron akan bergerak ke arah jenis-p.
Both holes and electrons will move away from depletion range
Kedua-dua lohong dan elektron akan bergerak menjauhi lapisan susutan
Depletion layer becomes thicker.
Lapisan susutan menjadi lebar
Depletion layer becomes thinner.
Lapisan susutan menjadi nipis
The current passes through the diode
Arus boleh mengalir melalui diod
What are the traits of a reverse biased circuit?
Apakah ciri-ciri bagi litar pincang songsang?
The holes will move to n-type, electrons will move to p-type
Lohong akan bergerak ke arah jenis-n manakala elektron akan bergerak ke arah jenis-p.
Both holes and electrons will move away from depletion range
Kedua-dua lohong dan elektron akan bergerak menjauhi lapisan susutan
Depletion layer becomes thicker.
Lapisan susutan menjadi lebar
Depletion layer becomes thinner.
Lapisan susutan menjadi nipis
The current passes through the diode
Arus boleh mengalir melalui diod
“The process of converting an alternating current into a direct current.” The following is the definition of
“Proses penukaran arus ulang-alik kepada arus terus.” Berikut adalah definisi bagi
Smoothing
Rata
Catapult field
Medan lastik
Transformer
Rectification
Rektifikasi
The diagram shows circuit of a rectification. Name the rectification
Rajah menunjukkan suatu litar rektifikasi. Namakan rektifikasi ini.
half-wave rectification
rektifikasi gelombang separuh
full-wave rectification
rektifikasi gelombang penuh
half-wave rectification and smoothing
rektifikasi gelombang separuh dan perataan
full-wave rectification and smoothing
rektifikasi gelombang penuh dan perataan
The diagram shows output voltage of a rectification. Name the rectification
Rajah menunjukkan voltan output rektifikasi. Namakan rektifikasi ini.
half-wave rectification
rektifikasi gelombang separuh
full-wave rectification
rektifikasi gelombang penuh
half-wave rectification and smoothing
rektifikasi gelombang separuh dan perataan
full-wave rectification and smoothing
rektifikasi gelombang penuh dan perataan
The diagram shows output voltage of a rectification. Name the rectification
Rajah menunjukkan voltan output rektifikasi. Namakan rektifikasi ini.
half-wave rectification
rektifikasi gelombang separuh
full-wave rectification
rektifikasi gelombang penuh
half-wave rectification and smoothing
rektifikasi gelombang separuh dan perataan
full-wave rectification and smoothing
rektifikasi gelombang penuh dan perataan
