With an AC input from 50 Hz power line, the ripple frequenc…

Physics Semiconductor Electronics All Topic Question for Revision Test MCQ (Single Correct)

With an AC input from 50 Hz power line, the ripple frequency is

50 Hz in the DC output of half-wave as well as full wave rectifier

100 Hz in the DC output of half-wave as well as full wave rectifier

50 Hz in the DC output of half-wave and 100 Hz in DC output of full wave rectifier

100 Hz in the DC output of half-wave and 50 Hz in the DC output of full wave rectifier

Text Solution

Verified by Experts

The correct answer is:

We are given: AC input frequency . We are asked about the ripple frequency in rectifier outputs.
Step 1: Half-wave rectifier

A half-wave rectifier passes only one half-cycle of AC (either positive or negative).

So, the output pulses occur once per AC cycle.

Therefore, the ripple frequency input frequency .

Step 2: Full-wave rectifier

A full-wave rectifier inverts the negative half-cycles, so output pulses occur twice per AC cycle.

Therefore, the ripple frequency input frequency .

Conclusion:

Half-wave: 50 Hz

Full-wave: 100 Hz

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