The principle of the AGC circuit in AM receiver by the amplifier gain increases when the DC feedback from the envelope detector decreases the amplifier gain increases when the ripple the envelope detector increases the amplifier gain increases if the modulation index is low the amplifier gain increases when the ripple the envelope detector decreases the amplifier gain increases when the DC feedback from the envelope detector increases None of these the amplifier gain increases if the modulation index is high

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The principle of the AGC circuit in AM receiver by
the amplifier gain increases when the DC feedback from the envelope detector decreases
the amplifier gain increases when the ripple the envelope detector increases
the amplifier gain increases if the modulation index is low
the amplifier gain increases when the ripple the envelope detector decreases
the amplifier gain increases when the DC feedback from the envelope detector increases
None of these
the amplifier gain increases if the modulation index is high
Transcribed Image Text:The principle of the AGC circuit in AM receiver by the amplifier gain increases when the DC feedback from the envelope detector decreases the amplifier gain increases when the ripple the envelope detector increases the amplifier gain increases if the modulation index is low the amplifier gain increases when the ripple the envelope detector decreases the amplifier gain increases when the DC feedback from the envelope detector increases None of these the amplifier gain increases if the modulation index is high
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