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AM waves is represented by which equation?(a) [1 + m(t)].c(t)(b) [1 – m(t)].c(t)(c) [1 + m(t)].2c(t)(d) [1 + 2m(t)].c(t)This question was posed to me in unit test.My enquiry is from AM Wave Representation topic in portion Amplitude Modulation of Analog Communications

Answer»

The correct option is (a) [1 + m(t)].C(t)

Best explanation: Amplitude wave is represented by [1 + um(t)].c(t), where c(t) is CARRIER signal, m(t) is message signal, u is MODULATION Index.

Generally, c(t) = Accos(wct), AC = Amplitude of Carrier Signal.



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