In a full wave rectifier circuit operating from `50 Hz` mains frequency , the fundamental frequency in the ripple would be

Options

A. 50 Hz in the dc output of half wave as well as full wave rectifier
B. 100 Hz in the dc output of half wave as well as full wave rectifier
C. 50 Hz in the dc output of half wave and 100 Hz in dc output of full wave rectifier
D. 100 Hz in the dc output of half wave and 50 Hz in the dc output of full wave rectifier

Answer

To solve the question regarding the fundamental frequency in the ripple of a full wave rectifier circuit operating from a 50 Hz mains frequency, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Input Frequency**: The mains frequency given is 50 Hz. This is the frequency of the alternating current (AC) input that the rectifier will convert to direct current (DC).

2. **Identify the Type of Rectifier**: We are dealing with a full wave rectifier. A full wave rectifier converts both halves of the AC waveform into DC. This means that for every cycle of the AC input, there are two cycles of the output.

3. **Calculate the Output Frequency**: The output frequency of a full wave rectifier is double the input frequency. This is because it rectifies both the positive and negative halves of the AC signal. Therefore, we can calculate the output frequency (f_output) as follows:
\[ f_{\text{output}} = 2 \times f_{\text{input}} = 2 \times 50 \text{ Hz} = 100 \text{ Hz} \]

4. **Conclusion**: The fundamental frequency in the ripple of the output from the full wave rectifier is 100 Hz.

### Final Answer:
The fundamental frequency in the ripple of a full wave rectifier circuit operating from 50 Hz mains frequency is **100 Hz**.

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