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PhysicsEM WavesCommunicationMedium2 minPYQ_2023

PhysicsMediumsingle choice

A transmitter radiates $10 kW$ of power with the carrier unmodulated and $11.8 kW$ with the carrier sinusoidally modulated. The modulation factor is

Answer:

Solution:

$P_{c} = P_{t} (1 + \frac{m ^{2}}{2}) \Rightarrow 11.8 = 10 (1 + \frac{m ^{2}}{2}) \Rightarrow m = 0.6 \Rightarrow % modulation = 60%.$

Stream:VITEEESubject:PhysicsTopic:EM WavesSubtopic:Communication

⏱ 2mℹ️ Source: PYQ_2023

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