Question

The time period of output ripple of a full wave rectifier is 40 ms, what will be the input A.C frequency of this rectifier circuit? A) 100 Hz C) 25 Hz B) 50 Hz D) 12.5 Hz ​

Answer 1

Answer:

12.5 Hz is the correct ans

Answer 2

This is the question of full wave rectifier circuit in full wave rectifier circuit the frequency of output waveform is equals to twice the frequency of input waveform
Fout = Fin
In full wave rectifier it rectifies the both cycle of AC input so due to which output frequency is double of input frequency.

The time period of output ripple of a full wave rectifier is 40 ms
40 ms = 0.04sec
Frequency = 1/time period
Frequency = 25 hz

input A.C frequency of this rectifier circuit

Fout=2*Fin
25 Hz = 2* Fin
Fin =12.5 Hz
.. 12.5
.