In an electromagnetic wave, the electric and magnetizing fields are 100 Vm−1 and 0.265 Am−1 . The maximum energy flow is
Answer & explanation
Correct answer: option 1
Here, amplitude of electric filed, $E_0 = 100 Vm^{-1};$ amplitude of magnetic field, $B_0 = 0.265 Am^{-1}$. We know that the maximum rate of energy flow
$ S = E_0 × B_0 = 100 × 0.265 = 26.5 Wm^{-2}$