Physics WAEC

Ripple in a power supply unit is caused by?

A. using an alternating current source
B. forward voltage drop
C. heavy load
D. using a Zener diode

Correct Answer: Option D

D. using a Zener diode

Explanation

The correct option is “Using a Zener diode” as fluctuation of d.c signal results from the rectification of a.c to d.c.

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