Multiple Choice
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 W/m2.The wave is incident upon a rectangular area,1.5 m by 2.0 m,at right angles.How much total electromagnetic energy falls on the area during 1.0 minute? (c = 3.0 × 108 m/s,μ0 = 4π × 10-7 T ∙ m/A,ε0 = 8.85 × 10-12 C2/N ∙ m2)
A) 170 J
B) 210 J
C) 250 J
D) 300 J
E) 340 J
Correct Answer:

Verified
Correct Answer:
Verified
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