Energy Density: At a particular point and instant, the magnetic field component of an electromagnetic wave is 15.0 ?T. What is the magnetic energy density of this wave at that point and instant? (c = 3.00 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2)

A. 2.26 × 10-4 J/m3
B. 8.95 × 10-5 J/m3
C. 1.79 × 10-4 J/m3
D. 4.47 × 10-4 J/m3
E. 9.72 × 10-5 J/m3


Answer: B

Physics & Space Science

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