A carrier signal 60 sin(2pi times 10^6 t) is | vedclass

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(C) The modulation index (or depth of modulation) $m_a$ is defined as the ratio of the amplitude of the modulating signal $(E_m)$ to the amplitude of

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$25$

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(C) The modulation index (or depth of modulation) $m_a$ is defined as the ratio of the amplitude of the modulating signal $(E_m)$ to the amplitude of the carrier signal $(E_c)$.Given:Amplitude of modulating signal,$E_m = 15 \ V$.Amplitude of carrier signal,$E_c = 60 \ V$.The formula for the depth of modulation is $m_a = \frac{E_m}{E_c}$.Substituting the values: $m_a = \frac{15}{60} = 0.25$.To express this as a percentage,we multiply by $100$: $0.25 	imes 100 = 25 \%$.Therefore,the depth of modulation is $25 \%$.

$A$ carrier signal $60 \sin(2\pi \times 10^6 t)$ is used to modulate an audio signal $15 \sin(300\pi t)$. The depth of modulation is .........$\%$.

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