AP EAMCET Engineering 2018 Apr 22 Shift 1 Paper

Question : 115 of 160

Marks: +1, -0

In a plane electromagnetic wave, the electric field oscillates with a frequency 2 × 1010s−1 and amplitude 40 Vm−1 , then the energy density due to electric field is_______
(ε0 = 8.85 × 10−12Fm−1)