For \( 100 \% \) modulation (AM), the useful part of the total power radiated is (a) \( \frac{1}...

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For \( 100 \% \) modulation (AM), the useful part of the total power radiated is
(a) \( \frac{1}{2} \) of the total power
(b) \( \frac{1}{3} \) of the total power
(c) \( \frac{1}{4} \) of the total power
(d) \( \frac{2}{3} \) of the total power
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