Electric field (Question 2 (10 Marks)) — UPSC Physics Optional CSE 2025 Paper I

\vec{E} = 10 \cos (\omega t - 100 x) \hat{j}\text{ V/m} In free space, an electric field (\vec{E}) is given by the following expression : \vec{E} = 10 \cos (\omega t - 100 x) \hat{j}\text{ V/m} Find the angular frequency \omega and the displacement current.