Question

If the output frequency of a full-wave rectifier is 100 Hz, then input frequency will be ______.

• A. 50 Hz
• B. 200 Hz
• C. 100 Hz
• D. 25 Hz

Hint:

In a \textbf{Half-Wave} Rectifier, $f_{out} = f_{in}$. In a \textbf{Full-Wave} Rectifier, $f_{out} = 2f_{in}$.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
A full-wave rectifier converts both halves of the AC cycle into pulsating DC. This means for every one cycle of input, we get two pulses of output.
Step 2: Formula Application:
$f_{out} = 2 \times f_{in}$ for a full-wave rectifier.
Step 3: Explanation:
Given $f_{out} = 100$ Hz. $100 = 2 \times f_{in} \implies f_{in} = 50$ Hz.
Step 4: Final Answer:
The input frequency is 50 Hz.