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

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

(a) 4.3V

(b) 5.7V

(c) 10V

(d) 5V

This question was posed to me in an international level competition.

This intriguing question originated from Bridge Rectifier topic in chapter Diode Circuit of Analog Circuits

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The correct choice is (d) 5V

The explanation: PIV is the maximum reveres bias voltage that can be appeared across a diode in the circuit. If PIV rating of the diode is less than this Value breakdown of diode may occur. Therefore, PIV rating of diode should be greater than PIV in the circuit. For bridge rectifier PIV is 5V.

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