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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class12  >>  Communication Systems
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Amplitude of carrier wave is 20v amplitude of signal is 2v.Percentage of modulation is

$\begin{array}{1 1}(a)\;\text{20 %}\\(b)\; \text{10 %}\\(c)\;\text{100 %}\\(d)\;\text{80 %}\end{array}$

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% of modulation =$\large\frac{1}{10}$$\times 100$
$\Rightarrow 10\%$
Hence (b) is the corrret option.
answered Mar 17, 2014 by sreemathi.v

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