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ECE · Q113

Communication Systems

Engineering and GATE · ECE · question 113

Q113

An amplitude modulated signal is (A + 0.5Acosωmt)cosωct where ωm and ωc are respectively, modulating and carrier frequencies. The power efficiency is

A.
11.11%
Answer
B.
0.25%
C.
4.32%
D.
50%

Answer: Option A

Solution

Answer: Option A
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