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\[100\,\,Hz\].