GKFix MCQ Question

What is the total average energy density of an EM wave with E_rms = 2.9 V/m?

• A. 7.44 × 10⁻¹¹ J/m³
• B. 1.11 × 10⁻¹⁰ J/m³
• C. 2.22 × 10⁻¹⁰ J/m³
• D. 3.72 × 10⁻¹¹ J/m³