A. To pass d.c. between the stages
B. Not to attenuate the low frequencies
C. To dissipate high power
D. None of the above
✅ The correct answer is option B.
Electrical Engineering MCQs
The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 KΩ resistor is__________?
A. 25 %
B. 20 %
C. 100 %
D. 50 %
✅ The correct answer is option B.
A radio receiver has____________of amplification?
A. One stage
B. Two stages
C. Three stages
D. More than one stages
✅ The correct answer is option D.
The input resistance of a VTVM is about ______________?
A. 1000 O
B. 10 kO
C. 20 kO
D. 10 MO
✅ The correct answer is option D.
Which of the following motors is preferred when quick speed reversal is the main consideration ?
A. Squirrel cage induction motor
B. Wound rotor induction motor
E. Synchronous motor
D. D.C. motor
✅ The correct answer is option D.
In practice, voltage gain is expressed______________?
A. In db
B. In volts
C. As a number
D. None of the above
✅ The correct answer is option A.
In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is___________?
A. Indeterminable
B. 2 kΩ
C. 10 kΩ
D. 20 kΩ
✅ The correct answer is option B.
Transformer coupling provides high efficiency because___________?
A. Collector voltage is stepped up
B. resistance is low
C. collector voltage is stepped down
D. none of the above
✅ The correct answer is option B.
The most costly coupling is _______________ coupling?
A. RC
B. Direct
C. Impedance
D. Transformer
✅ The correct answer is option D.
If a square wave is fed to a differentiating circuit, the output will be _____________?
A. Sine wave
B. Sharp narrow pulses
C. Rectangular wave
D. Triangular wave
✅ The correct answer is option B.