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A message signal of 12 kHz and peak volt...

A message signal of 12 kHz and peak voltage 20 V is used to modulate a carrier wave frequency 12 MHz and peak voltage 30 V. then, the modulation index is

A

0.32

B

6.7

C

0.67

D

67

Text Solution

Verified by Experts

The correct Answer is:
C
Peak voltage `E_(m)=20`
Carrier voltage ,`E_(r)=30v`
`m_(a)=(E_m)/(E_c)=(20)/(30)=0.67`.
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