If the power input to an antenna is 100 mW and if the radiated power – McqOptions

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1.	If the power input to an antenna is 100 mW and if the radiated power is measured to be 90 mW, then the efficiency of the antenna is:
A.	75 %
B.	80 %
C.	90 %
D.	insufficient data
Answer» D. insufficient data

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