Physics · 2023
JEE Main · 6 April 2023, Shift 2 · Q46
The energy density associated with electric field E and magnetic field B of an electromagnetic wave in free space is given by ( ε_0 - permittivity of…
The energy density associated with electric field $\displaystyle \vec{E}$ and magnetic field $\displaystyle \vec{B}$ of an electromagnetic wave in free space is given by ( $\displaystyle \epsilon_0$ - permittivity of free space, $\displaystyle \mu_0$ - permeability of free space)
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle U_E=\frac{\epsilon_0 E^2}{2}, U_B=\frac{B^2}{2 \mu_0}$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.