question_answer

In a full wave rectifier circuit operating from 50  Hz  mains  frequency,  what is  the fundamental frequency in the ripple?

A) \[50\,Hz\]

B) \[100\,Hz\]

C) \[25\,Hz\]

D) \[70\,Hz\]

Correct Answer: B

Solution :

 When diode acts as full wave rectifier two diode valves are connected to obtain a continuous full wave output. Hence, fundamental frequency in the ripple is twice of operating frequency, that is 100 Hz.