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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 signalsThis question was addressed to me in an internship interview.The question is from Disadvantages of Filter Method in portion SSB Modulation of Analog Communications

Answer»

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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