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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class12  >>  Communication Systems
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A message signal of frequency 10 kHz and peak voltage of 10 volts is used to modulate a carrier of frequency 1 MHz and peak voltage of 20 volts. Determine (a) modulation index, (b) the side bands produced.

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Modulation Index = $\large\frac{10}{20} $$ = 0.5$
Side bands are at $(1000+10\; kHz) = 1010 kHz$ and $(1000-10\;kHz)$ which is $990\;kHz$
answered Jul 12, 2014 by balaji.thirumalai

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