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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class12  >>  Communication Systems
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Power of carrier wave is 1000Watt.What is the required power of the signal to modulate it 100%

$\begin{array}{1 1}(a)\;\text{1000 W}\\(b)\; \text{750 W}\\(c)\;\text{500 W}\\(d)\;\text{250 W}\end{array}$

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Given :
Power of carrier wave $P_c=1000W$
Modulation =100%
$\therefore m=1$
Total power=1500
$\therefore$ Power of signal =$1500-1000$
$\Rightarrow 500W$
Hence (c) is the correct answer.
answered Mar 17, 2014 by sreemathi.v

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