Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be:
A
25 Hz
B
50 Hz
C
70.7 Hz
D
100 Hz
Answer
100 Hz
Explanation
Solution
A full-wave rectifier circuit operating from a 50 Hz mains will produce a ripple frequency that is twice the frequency of the mains supply. This is because a full-wave rectifier rectifies both halves of the AC cycle, effectively doubling the frequency of the ripples.
Therefore,
Fundamental frequency = 2 x Mains frequency
Fundamental frequency = 2 x 50 Hz = 100 Hz
So, the correct option is (D): 100 Hz