A message signal of frequency 10 KHz and peak voltage of 15 volts is used to modulate a carrier frequency of 1 .M .Hz and peak voltage of 30 volts. Determine the modulation index.

Question

A message signal of frequency 10 KHz and peak voltage of 15 volts is used to modulate a carrier frequency of 1 .M .Hz and peak voltage of 30 volts. Determine the modulation index. (A) 0.5 (B) 0.6 (C) 0.7 (D) 0.8

Tardigrade Admin · Accepted Answer

Modulation index, μ=( text Amplitude of message signal / text Amplitude of carrier wave )=(15 V /30 V )=0.5

Q. A message signal of frequency $10 KHz$ and peak voltage of $15$ volts is used to modulate a carrier frequency of $1 \dot{M} \dot{H} z$ and peak voltage of 30 volts. Determine the modulation index.

$0.5$

$0.6$

$0.7$

$0.8$

Modulation index,
$μ = \frac{Amplitude of message signal}{Amplitude of carrier wave} = \frac{15 V}{30 V} = 0.5$

Q. A message signal of frequency 10KHz and peak voltage of 15 volts is used to modulate a carrier frequency of 1M˙H˙z and peak voltage of 30 volts. Determine the modulation index.

0.5

0.6

0.7

0.8