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Varacter is used for generation of ________

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Varacter is used for generation of ________

(a) PM signals only

(b) FM signals only

(c) AM signals only

(d) DSB-SC signals

This question was addressed to me in an internship interview.

The question is from Disadvantages of Filter Method in portion SSB Modulation of Analog Communications

1 Answer

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Correct answer is (b) FM signals only

Easiest explanation: Varacter diode or tuning diode that has a variable capacitance. It is operated as reverse-biased and therefore no current flows. It is mainly used for generation of FM signals only.

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