In an $AM$ wave,the carrier power is given by:
- A$P_c = \frac{2E_c^2}{R}$
- B$P_c = \frac{E_c^2}{R}$
- C$P_c = \frac{E_c^2}{2R}$
- D$P_c = \frac{E_c^2}{\sqrt{2}R}$
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