Field Intensity: an Electromagnetic Wave Has a Peak Electric Field

question 50

Multiple Choice

Field intensity: An electromagnetic wave has a peak electric field of 3.0 kV/m. What is the intensity of the wave? (c = 3.0 × 10⁸ m/s, μ₀ = 4π × 10^-7 T ∙ m/A, ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A) 24 kW/m²
• B) 12 kW/m²
• C) 8.0 kW/m²
• D) 4.0 kW/m²

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