Official PYQ · 2004Set 1 · Q26Analog CommunicationsMCQ1 mark

GATE EC 2004 Set 1 Q26 — Analog Communications

An AM signal is detected using an envelope detector. The carrier frequency and modulating signal frequency are $1 \; \mathrm{MHz}$ and $2 \; \mathrm{kHz}$ respectively. An appropriate value for the time constant of the envelope detector is

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Answer: B

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Published 10 Oct 2026

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