An antenna has maximum radiation intensity Umax = 10 Watt/Sr and average radiation intensity Uavg = 4.5 Watt/Sr. if the efficiency of the antenna is given as nr = 95%, the input power of the antenna is ?

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Q. An antenna has maximum radiation intensity Umax = 10 Watt/Sr and average radiation intensity Uavg = 4.5 Watt/Sr. if the efficiency of the antenna is given as nr = 95%, the input power of the antenna is ?

(A) 2.222 Watt
(B) 59.52 Watt
(C) 12.11 Watt
(D) 55.55 Watt

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✅ Correct Answer: (B) 59.52 Watt

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