A. Power
B. Voltage
C. Current
D. None of the above
✅ The correct answer is option A.
Electrical Engineering MCQs
Low efficiency of a power amplifier results in_________________?
A. Low forward bias
B. Less battery consumption
C. More battery consumption
D. None of the above
✅ The correct answer is option C.
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.
If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is____________?
A. 600 db
B. 24 db
C. 14 db
D. 27 db
✅ The correct answer is option D.
A resonant circuit contains ____________elements?
A. R and L only
B. R and C only
C. Only R
D. L and C
✅ The correct answer is option D.
If load resistance in the above question (Q.49) is removed, the output voltage will_____________?
A. increase
B. decrease
C. stay the same
D. be zero
✅ The correct answer is option A.
Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?
A. Absolute instruments
B. Indicating instruments
C. Recording instruments
D. Integrating instruments
✅ The correct answer is option B.
n a common-source JFET amplifier, the output voltage is _____________?
A. 180o out of phase with the input
B. in phase with the input
C. 90o out of phase with the input
D. taken at the source
✅ The correct answer is option A.
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.
Hot rolled sheets have ___________ value of permeability?
A. zero
B. low
C. high
D. none of the above
✅ The correct answer is option B.