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  4. A antenna current of an AM broadcast transmitter modulated by 50 % is 11 A. The carrier current is

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Q. A antenna current of an AM broadcast transmitter modulated by $50 \%$ is $11 \,A$. The carrier current is

Communication Systems

Solution:

$I_{\text {Carrier }}=\frac{I_{\text {rms }}}{\sqrt{1+\frac{m_{a}^{2}}{2}}}$
$=\frac{11}{\sqrt{1+\frac{(0.5)^{2}}{2}}}=10.35\, A$