The Rms Value of the Electric Field in an Electromagnetic

question 4

Multiple Choice

The rms value of the electric field in an electromagnetic wave is E_rms = 200 V/m. The intensity of this wave is approximately

• A) 53.1 W/m².
• B) 106 W/m².
• C) 1.59 × 10¹⁰ W/m².
• D) 3.18 × 10¹⁰ W/m².
• E) 1.70 kW/m².

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