The audio signal used to modulate 60 sin 2 π 10 6 t is 15sin 300 π t. The depth of modulation is Options: A . &nbsp50% B . &nbsp40% C . &nbsp25% D . &nbsp15% E . &nbspThe frequency of modulated wave varies as frequency of carrier wave

Answer: Option C : C m a = E m E c = 15 60 × 100 = 25 %

The audio signal used to modulate 60 sin 2π106t is 15sin 300πt.

Question

The audio signal used to modulate 60 sin 2

π 10^{6}

t is 15sin 300

π

t. The depth of modulation is

Answer: Option C
:
C

m_{a} = \frac{E_{m}}{E_{c}} = \frac{15}{60} \times 100

= 25 %

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