Given below is the circuit diagram of an \( A M \) demodulator. For...

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Given below is the circuit diagram of an \( A M \) demodulator. For good demodulation of \( A M \) signal of carrier frequency \( f \), the value of \( R C \) should be
\( \mathrm{P} \)
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(1) \( R C=1 / f \)
(2) \( R C1 / f \)
(3) \( R C \leq 1 / f \)
(4) \( R C \gg 1 / f \)
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