If the intensity of an electromagnetic wave is 80 MW/m2, what is the amplitude of the magnetic field of this wave? (c = 3.0 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2)
A) 0.82 mT
B) 0.33 µT
C) 10 T
D) 14 T
E) 0.58 mT
Answer: A
Physics & Space Science
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