A signal m(t) amplitude modulates a carrier Ac cos ωct. The final sig – McqOptions

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1.	A signal m(t) amplitude modulates a carrier Ac cos ωct. The final signal will be
A.	[Ac m(t)] cos ωct]
B.	Ac . [1 + m(t)] cos ωct
C.	Ac + [m(t)] cos ωct
D.	Ac cos ωct + m(t)
Answer» C. Ac + [m(t)] cos ωct

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