The Figure Shows the Time Variation of the Magnitude of the Electric

question 26

Multiple Choice

The figure shows the time variation of the magnitude of the electric field of an electromagnetic wave produced by a wire antenna.
-What is the average total energy density of this electromagnetic wave?

• A)6.2 × 10^-11 J/m³
• B)8.6 × 10^-11 J/m³
• C)1.1 × 10^-10 J/m³
• D)1.8 × 10^-10 J/m³
• E)4.4 × 10^-10 J/m³

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