Explore topic-wise MCQs in Analog Circuits.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

In a centre tapped full wave rectifier, the input sine wave is 250sin100t. The output ripple frequency will be _________

A. 50Hz
B. 100Hz
C. 25Hz
D. 200Hz
Answer» C. 25Hz
Discussion
2.

If the peak voltage on a centre tapped full wave rectifier circuit is 5V and diode cut in voltage is 0.7. The peak inverse voltage on diode is_________

A. 4.3V
B. 9.3V
C. 5.7V
D. 10.7V
Answer» C. 5.7V
Discussion
3.

Transformer utilization factor of a centre tapped full wave rectifier is_________

A. 0.623
B. 0.678
C. 0.693
D. 0.625
Answer» D. 0.625
Discussion
4.

If input frequency is 50Hz for a full wave rectifier, the ripple frequency of it would be _________

A. 100Hz
B. 50Hz
C. 25Hz
D. 500Hz
Answer» B. 50Hz
Discussion
5.

In a centre tapped full wave rectifier, RL=1KΩ and for diode Rf=10Ω. The primary voltage is 800sinωt with transformer turns ratio=2. The ripple factor will be _________

A. 54%
B. 48%
C. 26%
D. 81%
Answer» C. 26%
Discussion
6.

A full wave rectifier uses load resistor of 1500Ω. Assume the diodes have Rf=10Ω, Rr=∞. The voltage applied to diode is 30V with a frequency of 50Hz. Calculate the AC power input.

A. 368.98mW
B. 275.2mW
C. 145.76mW
D. 456.78mW
Answer» C. 145.76mW
Discussion
7.

A full wave rectifier delivers 50W to a load of 200Ω. If the ripple factor is 2%, calculate the AC ripple across the load.

A. 2V
B. 5V
C. 4V
D. 1V
Answer» B. 5V
Discussion
8.

A full wave rectifier supplies a load of 1KΩ. The AC voltage applied to diodes is 220V (rms). If diode resistance is neglected, what is the ripple voltage?

A. 0.562V
B. 0.785V
C. 0.954V
D. 0.344V
Answer» D. 0.344V
Discussion
9.

Efficiency of a centre tapped full wave rectifier is _________

A. 50%
B. 46%
C. 70%
D. 81.2%
Answer» E.
Discussion
10.

IN_A_CENTER_TAPPED_FULL_WAVE_RECTIFIER,_THE_INPUT_SINE_WAVE_IS_250SIN100_¬¨‚Àˬ¨‚Ä¢¬¨√ÜT._THE_OUTPUT_RIPPLE_FREQUENCY_OF_RECTIFIER_WILL_BE___________?$#

A. 50Hz
B. 200Hz
C. 100Hz
D. 25Hz
Answer» D. 25Hz
Discussion
11.

IN_A_CENTER_TAPPED_FULL_WAVE_RECTIFIER,_THE_INPUT_SINE_WAVE_IS_200SIN50_¬¨‚Àˬ¨‚Ä¢¬¨√ÜT._IF_LOAD_RESISTANCE_IS_OF_1K_THEN_AVERAGE_DC_POWER_OUTPUT_OF_HALF_WAVE_RECTIFIER_IS___________?$#

A. 12.56W
B. 16.20W
C. 4.02W
D. 8.04W
Answer» C. 4.02W
Discussion
12.

In a center tapped full wave rectifier, the input sine wave is 20sin500 ·¥®t. The average output voltage is _________?#

A. 12.73V
B. 6.93V
C. 11.62V
D. 3.23V
Answer» B. 6.93V
Discussion
13.

Efficiency of center tapped full wave rectifier is ___________

A. 50%
B. 81.2%
C. 40.6%
D. 45.3%
Answer» C. 40.6%
Discussion
14.

If peak voltage on a center tapped full wave rectifier circuit is 5V and diode cut-in voltage is 0.7, then peak inverse voltage on diode will be ___________

A. 4.3 V
B. 10 V
C. 5.7 V
D. 9.3 V
Answer» C. 5.7 V
Discussion
15.

Transformer utilization factor of a center tapped full wave rectifier is equal to ___________

A. 0.623
B. 0.678
C. 0.693
D. 0.625
Answer» D. 0.625
Discussion
16.

If input frequency is 50Hz then ripple frequency of center tapped full wave rectifier will be equal to _____________

A. 100Hz
B. 50Hz
C. 25Hz
D. 500Hz
Answer» B. 50Hz
Discussion
17.

Ripple factor of center tapped full wave rectifier is _____________

A. 1.414
B. 1.21
C. 1.3
D. 0.48
Answer» E.
Discussion
18.

DC power output of center tapped full wave rectifier is equal to ___________

A.
B. (2I<sub>m</sub><sup>2</sup>/·¥®<sup>2</sup>)R<sub>L</sub>
C. (I<sub>m</sub><sup>2</sup>/2 ·¥®<sup>2</sup>)R<sub>L</sub>
D. (I<sub>m</sub><sup>2</sup>/·¥®<sup>2</sup>)R<sub>L</sub>
Answer» E.
Discussion
19.

DC average current of a center taped full wave rectifier is _______________

A.
B. 2I<sub>m</sub>/·¥®
C. I<sub>m</sub>/·¥®
D. I<sub>m</sub>/2·¥®
Answer» B. 2I<sub>m</sub>/¬¨‚à묨‚Ä¢¬¨√Ü
Discussion