An audio signal v m = 20 sin 2 π 1500 t amplitude modulates a carrier v c = 80 sin 2 π 100 , 000 t . The value of percent modulation is

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An audio signal

v_{m} = 20 \sin 2 π (1500 t)

amplitude modulates a carrier

v_{c} = 80 \sin 2 π (100, 000 t)

. The value of percent modulation is

PhysicsCommunication SystemJEE MainJEE Main 2021 (24 Feb Shift 1)

Solution:

2285 Upvotes Verified Answer

The correct answer is: 25

$%$ modulation $= \frac{A m}{A c} \times 100$

$%$ modulation $= \frac{20}{80} \times 100$

$%$ modulation $= 25 %$

$= 25$

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