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Transistor Biasing

Thermal runaway occurs when_________________?

August 12, 2021December 24, 2018 by admin
Thermal runaway occurs when_________________?

A. Collector is reverse biased
B. Transistor is not biased
C. Emitter is forward biased
D. Junction capacitance is high

Categories Electrical Engineering Mcqs, Transistor Biasing

The operating point ________________ on the a.c. load line?

August 12, 2021December 24, 2018 by admin
The operating point ________________ on the a.c. load line?

A. Also line
B. Does not lie
C. May or may not lie
D. Data insufficient

Categories Electrical Engineering Mcqs, Transistor Biasing

The operating point is also called the _______________?

August 12, 2021December 24, 2018 by admin
The operating point is also called the _______________?

A. Cut off point
B. Quiescent point
C. Saturation point
D. None of the above

Categories Electrical Engineering Mcqs, Transistor Biasing

For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than_____________?

August 12, 2021December 24, 2018 by admin
For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than_____________?

A. 10 IB
B. 3 IB
C. 2 IB
D. 4 IB

Categories Electrical Engineering Mcqs, Transistor Biasing

The disadvantage of base resistor method of transistor biasing is that it_________________?

August 12, 2021December 24, 2018 by admin
The disadvantage of base resistor method of transistor biasing is that it_________________?

A. Is complicated
B. Is sensitive to changes in ß
C. Provides high stability
D. None of the above

Categories Electrical Engineering Mcqs, Transistor Biasing

An ideal value of stability factor is________________?

August 12, 2021December 24, 2018 by admin
An ideal value of stability factor is________________?

A. 100
B. 200
C. More than 200
D. 1

Categories Electrical Engineering Mcqs, Transistor Biasing

The leakage current in a silicon transistor is about_____________ the leakage current in a germanium transistor?

August 12, 2021December 24, 2018 by admin
The leakage current in a silicon transistor is about_____________ the leakage current in a germanium transistor?

A. One hundredth
B. One tenth
C. One thousandth
D. One millionth

Categories Electrical Engineering Mcqs, Transistor Biasing

The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by___________________?

August 12, 2021December 24, 2018 by admin
The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by___________________?

A. 100 µA
B. 25 µA
C. 20 µA
D. 50 µA

Categories Electrical Engineering Mcqs, Transistor Biasing

If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?

August 12, 2021December 24, 2018 by admin
If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?

A. 6 mA
B. mA
C. 3 mA
D. 1 mA

Categories Electrical Engineering Mcqs, Transistor Biasing

The circuit that provides the best stabilization of operating point is___________________?

August 12, 2021December 24, 2018 by admin
The circuit that provides the best stabilization of operating point is___________________?

A. Base resistor bias
B. Collector feedback bias
C. Potential divider bias
D. None of the above

Categories Electrical Engineering Mcqs, Transistor Biasing
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