The Maximum Magnetic Energy Density of a Sinusoidal Electromagnetic Wave $\vec { B }$

question 56

Multiple Choice

The maximum magnetic energy density of a sinusoidal electromagnetic wave is 8.95 × 10^-5 J/m³.What is the amplitude of the $\vec { B }$ field component of this wave? (c = 3.00 × 10⁸ m/s,μ₀ = 4π × 10^-7 T ∙ m/A,ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A)12.0 μT
• B)13.0 μT
• C)14.0 μT
• D)15.0 μT
• E)16.0 μT

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