The Rms Value of the Magnitude of the Magnetic Field

question 26

Multiple Choice

The rms value of the magnitude of the magnetic field in an electromagnetic wave is B_rms = 0.378 T. The average energy density of this wave is approximately

• A) 114 kJ/m³.
• B) 28.4 kJ/m³.
• C) 31.8 kJ/m³.
• D) 67.8 kJ/m³.
• E) 56.9 kJ/m³.

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