Ap Eapcet
Electromagnetic Waves
AP EAPCET 2021 - 19th August Evening Shift
MCQ+1 / -02021
The magnetic field of a plane electromagnetic wave is given by \(B=(400 \propto \mathrm{T})\sin \left[\left(4.0 \times 10^{15} \mathrm{~s}^{-1}\right)\left(t-\frac{x}{c}\right)\right]\). Average energy density corresponding to the electric field is