An antenna radiates isotropically over a half-space above a perfectly conducting flat ground plane. If E = 50 mV m–1 rms at a distance of 1 km and the antenna terminal current I = 3.5 A, the radiation resistance will be

An antenna radiates isotropically over a half-space above a perfectly

1.	An antenna radiates isotropically over a half-space above a perfectly conducting flat ground plane. If E = 50 mV m–1 rms at a distance of 1 km and the antenna terminal current I = 3.5 A, the radiation resistance will be
A.	3.4 Ω
B.	4.3 Ω
C.	5.2 Ω
D.	6.1 Ω
Answer» B. 4.3 Ω

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An antenna radiates isotropically over a half-space above a perfectly conducting flat ground plane. If E = 50 mV m–1 rms at a distance of 1 km and the antenna terminal current I = 3.5 A, the radiation resistance will be

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