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A transmitter supplies 9 kw to the aeria...

A transmitter supplies `9 kw` to the aerial when unmodulated. The power radiated when modulation index is `60 %`, is

A

`9.72 kw`

B

`9 kw`

C

`5.4 kw`

D

`10.62 kw`

Text Solution

Verified by Experts

The correct Answer is:
D
`P_(t) = P_(c )(1 +(m^(2))/(2)) = 9 (1 + ((0.6)^(2))/(2)) = 9 [1 + (0.36)/(2)]`
`= 9 [1 + 0.18] = 9 [1.18] = 10.62 kw`
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