NEW
Font size
WorksheetsDiodes & Transistor Quiz
Total questions: 20
Worksheet time: 10mins
What happens when a diode is forward biased?
The diode becomes a conductor and allows the current to flow
The diode becomes an insulator and the current doesn’t flow
The diode emits visible light
The diode produces coherent light
What happens when a diode is reverse biased?
The diode becomes a conductor and allows the current to flow
The diode becomes an insulator and the current doesn’t flow
The diode emits visible light
The diode produces coherent light
What is the purpose of a rectifier diode?
To change Alternating Current (AC) to Direct Current (DC)
To recover audio from a radio signal
To conduct damaging high voltages away from sensitive electronic devices
To produce Microwave RF signal
It is formed by introducing a thin region of N-type material between two regions of P-type material.
PNP
NPN
PPNN
NNPP
What is the function of a crystal diode in radio demodulation?
To change Alternating Current (AC) to Direct Current (DC)
To recover audio from a radio signal
To conduct damaging high voltages away from sensitive electronic devices
To produce Microwave RF signal
What is the purpose of a varicap/varactor diode?
To change Alternating Current (AC) to Direct Current (DC)
To recover audio from a radio signal
To conduct damaging high voltages away from sensitive electronic devices
To enable tunable oscillators in radios
What is the function of a zener diode?
To change Alternating Current (AC) to Direct Current (DC)
To recover audio from a radio signal
To conduct damaging high voltages away from sensitive electronic devices
To withstand current that flows when the peak inverse voltage is reached or exceeded
The three pins of FET are:
Collector, Emitter, Base
Source, Drain, Gate
Collector, Emitter, Gate
Emitter, Drain, Gate
A small input current and a positive voltage applied @ its base (with VB>VE) allows a large current to flow from collector to emitter.
PNP
NPN
NNPP
NPNN
What is the purpose of a tunnel diode?
To change Alternating Current (AC) to Direct Current (DC)
To recover audio from a radio signal
To conduct damaging high voltages away from sensitive electronic devices
To amplify signals and operate in high radiation environments
What is the function of a PIN diode?
To change Alternating Current (AC) to Direct Current (DC)
To protect other semiconductor devices from high voltage transients
To detect light
To work at high frequencies
A transistor is composed of semiconductor material with at least _______terminals for connection to an external circuit.
ONE
TWO
THREE
FOUR
What is the function of a laser diode?
To emit visible light
To detect light
To amplify RF current
To produce coherent light
What is transistor?
A three lead semiconductor device that acts as an electrically controlled switch.
A three lead semiconductor device that acts as a current amplifier.
It control lead controls a larger current flow through its other two leads.
All of the above
What is the purpose of a shottky diode?
To change Alternating Current (AC) to Direct Current (DC)
To protect other semiconductor devices from high voltage transients
To emit radiant energy
To reduce the capacitance of the diode
A transistor pins that controls the flow of current carriers.
Base
Collector
Emitter
None of the above
A transistor pins which gives off the current carriers.
Base
Collector
Emitter
All of the above
A type of transistor that is useful as motor drivers.
BJT
FET
MOSFET
PUT
It is formed by introducing a thin region of P-type material between two regions of N-type material.
PNP
NPN
PNPP
NPNN
A small output current and a negative voltage @ its base (with VB<VE) allows a much larger current to flow from emitter to collector.
PNP
NPN
PPNN
NNPP
