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Electromagnetic Field Theory - Engineering

Q1:

A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is

A 10 watt

B 1 watt

C 0.1 watt

D 0.01 watt

ANS:A - 10 watt

Pradiated = Gain of Antenna x Input power = G.I 10 log1010 . 1 10 watt.