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Bandwidth of RF amplifier for a color TV receiver is ________

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Bandwidth of RF amplifier for a color TV receiver is ________

(a) equal to channel width

(b) more than channel width

(c) less than channel width

(d) twice of channel width

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This is a very interesting question from Detection of AM Waves in section Amplitude Modulation of Analog Communications

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Right answer is (b) more than channel width

Easiest explanation: RF amplifiers are tuned amplifiers in which the frequency of operation is controlled by a tuned circuit. Bandwidth of RF amplifier is generally kept a little more than channel so that there is no problem in reception.

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