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## Q. 1.1.16

Consider an angle modulated signal x(t) 6 cos $\left[2 \pi \times 10^{6} t+2 \sin (8000 \pi t)+4 \cos (8000 \pi t)\right] V$.

The average power of x(t) is

(a) 10 W                                       (b) 18 W

(c) 20 W                                      (d) 28 W

## Verified Solution

Average power of angle modulated signal  $x(t) \text { is } \frac{A_{C}^{2}}{2}$

Here  $A_{ C }=6$

Therefore, average power  $=\frac{6^{2}}{2}=18 W$

Hence, the correct option is (b).