The detector circuit used for detection of amplitude modulated wave consists of:

A parallel combination of diode, resistor and capacitor.

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Diode in series with a parallel combination of resistor and capacitor.

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A series combination of diode, resistor and capacitor.

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Diode in parallel with a series combination of resistor and capacitor.

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Solution

The correct option is B Diode in series with a parallel combination of resistor and capacitor.
The Envelope Detector circuit used for detection of amplitude modulated waves is shown in the figure. It consists of a diode in series with a capacitor and a resistor in parallel. The input and output waveforms are shown alongside.

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