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CBSE XII
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Physics
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Communication systems
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Q)
An AM transmitter records an antenna current of $10.5\;A$ . The antenna current drops to $10\;A$ when only carrier is transmitted. What is the percentage modulation ?
$\begin{array}{1 1} 4.53\% \\ 45.3\% \\ 55.3\;\% \\ 5.53\% \end{array} $
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