Question:
If carrier and modulating frequency are 100 kHz and 5 kHz respectively, the bandwidth of AM transmission will be _______.
If carrier and modulating frequency are 100 kHz and 5 kHz respectively, the bandwidth of AM transmission will be _______.
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In AM, Bandwidth = \(2 \times f_m\) where \(f_m\) is the highest modulating frequency.
Updated On: Jun 23, 2025
- 2 kHz
- 5 kHz
- 10 kHz
- 40 kHz
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The Correct Option is C
Solution and Explanation
Formula for AM bandwidth:
\[
BW = 2 \cdot f_m
\]
Where \(f_m\) is the modulating frequency.
Given:
\[
f_m = 5\ \text{kHz} \Rightarrow BW = 2 \cdot 5 = 10\ \text{kHz}
\]
Note:
Carrier frequency does not affect bandwidth.
Bandwidth = twice the maximum frequency in modulating signal.
Carrier frequency does not affect bandwidth.
Bandwidth = twice the maximum frequency in modulating signal.
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