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For a FM signal v(t) = 20 cos ( 10 * 108t + 30 sin 3000t), calculate the power dissipated by the FM wave in a 20Ω resistor. a. 100 Watts b. 10 Watts c. 200 Watts d. 20 Watts |
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Answer» b. 10 Watts Standard expression for FM signal is given by v(t) = A cos ( Ωct + mf sin Ωmt) Comparing with the given equation, A = 20 The dissipated power is given by P = V2rms/R = (20/√2)2/ 20 = 10Watts |
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