In a plane electromagnetic wave, the amplitude of the magnetic field is 5 . 0 × 10 - 6 T. Find the amplitude of the electric field and the total average energy density of the wave.

Amplitude of the electric field E 0 = B 0 C = 5 × 10 - 6 × 3 × 10 8 = 15 × 10 2 V / m = 1 . 5 × 10 3 V / m Total Energy density E av = 1 2 ∈ 0 E 0 2 = 1 2 × 8 . 85 × 10 - 12 × 2 . 25 × 10 6 = 9 . 95 x 10 - 6 J m - 3 E av = 9 . 95 × 10 - 6 ≈ 1 × 10 - 5 J / m 3

In a plane electromagnetic wave, the amplitude of the magnetic field is 5 . 0 × 10 - 6 T. Find the amplitude of the electric field and the total average energy density of the wave.

Amplitude of the electric field E 0 = B 0 C = 5 × 10 - 6 × 3 × 10 8 = 15 × 10 2 V / m = 1 . 5 × 10 3 V / m Total Energy density E av = 1 2 ∈ 0 E 0 2 = 1 2 × 8 . 85 × 10 - 12 × 2 . 25 × 10 6 = 9 . 95 x 10 - 6 J m - 3 E av = 9 . 95 × 10 - 6 ≈ 1 × 10 - 5 J / m 3