Question

Frequency of given $AC$ signal is $50Hz$. When it is connected to a half wave rectifier, the number of output pulses given by rectifier within one second is

• A. $50$
• B. $100$
• C. $25$
• D. $150$

Answer 1

The correct option is A $50$

In half-wave rectification, there is only one output pulse for each complete cycle of the input AC voltage. Therefore output frequency is same as that of AC supply frequency, ie,
$f_{out}=f_{in}$
So, pulses obtained in $1s$ by half-wave rectifier will be $50$.