Q8
An electromagnetic wave with E ( z,\,t ) = E_0 ( t - kz ) i is travelling in free space and crosses a disc of radius 2 m placed perpendicular to the Z-axis. If E0 = 60 V/m, the average power in watt, crossing the disc along the Z-direction is
An electromagnetic wave with is travelling in free space and crosses a disc of radius 2 m placed perpendicular to the Z-axis. If E0 = 60 V/m, the average power in watt, crossing the disc along the Z-direction is
A.
30
B.
60
AnswerC.
120
D.
270
Answer: Option B
Solution
Answer: Option B
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