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If modulation index of an AM wave is increased from 1.5 to 2, then the transitted power ________(a) remains same(b) increases by 20%(c) increases by 41%(d) increases by 50%I have been asked this question in exam.My question is from Problems of AM in portion Amplitude Modulation of Analog Communications

Answer» RIGHT CHOICE is (c) INCREASES by 41%

To explain I would say: When m=1.5, transmitted power

.

= 0.41 X 100

= 41%

Therefore,there is an increase in total power by 41%.


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