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Ripple factor of half wave rectifier is _________

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Ripple factor of half wave rectifier is _________

(a) 1.414

(b) 1.21

(c) 1.3

(d) 0.48

This question was addressed to me during an interview.

Enquiry is from Halfwave Rectifier in chapter Diode Circuit of Analog Circuits

1 Answer

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Best answer
Correct choice is (b) 1.21

The explanation: Ripple factor of a rectifier is the measure of the effectiveness of a power supply filter

in reducing the ripple voltage. It is calculated by taking ratio of RMS AC component of output voltage to DC component of output voltage.

r = √Irms^2 – IDC^2/IDC

For a half wave rectifier, it is 1.21.

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