Bridge Rectifier MCQ’s

Electronic Devices & Circuits Electronics & Communication Engineering

This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Bridge Rectifier”.

1. DC power output of bridge full wave rectifier is equal to (Im is the peak current and RL is the load resistance).
a) 2 Im2RL
b) 4 Im2RL
c) Im2RL
d) Im2 RL/2

2. Ripple factor of bridge full wave rectifier is?
a) 1.414
b) 1.212
c) 0.482
d) 1.321

3. DC average current of a bridge full wave rectifier (where Im is the maximum peak current of input).
a) 2Im
b) Im
c) Im/2
d) 1.414Im

4. If input frequency is 50Hz then ripple frequency of bridge full wave rectifier will be equal to_________
a) 200Hz
b) 50Hz
c) 45Hz
d) 100Hz

5. If peak voltage on a bridge full wave rectifier circuit is 5V and diode cut in voltage os 0.7, then the peak inverse voltage on diode will be_________
a) 4.3V
b) 9.3V
c) 8.6V
d) 3.6V

6. In a bridge full wave rectifier, the input sine wave is 40sin100t. The average output voltage is_________
a) 22.73V
b) 16.93V
c) 25.47V
d) 33.23V

7. Transformer utilization factor of bridge full wave rectifier _________
a) 0.623
b) 0.812
c) 0.693
d) 0.825

8. Efficiency of bridge full wave rectifier is_________
a) 81.2%
b) 50%
c) 40.6%
d) 45.33%

9. Number of diodes used in a full wave bridge rectifier is_________
a) 1
b) 2
c) 3
d) 4

10. In a bridge full wave rectifier, the input sine wave is 250sin100t. The output ripple frequency will be_________
a) 50Hz
b) 200Hz
c) 100Hz
d) 25Hz

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