A. VBE
B. 2VBE
C. 5 VBE
D. None of the above
✅ The correct answer is option A.
Transistor Biasing MCQs
12. Operating point represents__________________?
A. Values of IC and VCE when signal is applied
B. The magnitude of signal
C. Zero signal values of IC and VCE
D. None of the above
✅ The correct answer is option C.
13. For germanium transistor amplifier, VCE should_______________for faithful amplification?
A. Be zero
B. Be 0.2 V
C. Not fall below 0.7 V
D. None of the above
✅ The correct answer is option C.
14. The zero signal IC is generally ______________ mA in the initial stages of a transistor amplifier?
A. 4
B. 1
C. 3
D. More than 10
✅ The correct answer is option B.
15. For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?
A. Be zero
B. Be 0.01 V
C. Not fall below 0.7 V
D. Be between 0 V and 0.1 V
✅ The correct answer is option C.
16. Transistor biasing represents ______________ conditions?
A. a.c
B. d.c
C. both a.c. and d.c
D. none of the above
✅ The correct answer is option B.
17. In voltage divider bias, operating point is 3 V, 2 mA. If VCC = 9 V, RC = 2.2 kO, what is the value of RE ?
A. 2000 O
B. 1400 O
C. 800 O
D. 1600 O
✅ The correct answer is option C.
18. Transistor biasing is done to keep _____________in the circuit?
A. Proper direct current
B. Proper alternating current
C. The base current small
D. Collector current small
✅ The correct answer is option A.
19. In voltage divider bias, VCC = 25 V; R1 = 10 kO; R2 = 2.2 V ; RC = 3.6 V and RE =1 kO. What is the emitter voltage?
A. 7 V
B. 3 V
C. V
D. 8 V
✅ The correct answer is option D.
20. Transistor biasing is generally provided by a_______________?
A. Biasing circuit
B. Bias battery
C. Diode
D. None of the above
✅ The correct answer is option A.