CHSE Physics Quiz-1: Electric Charges and FieldsBy amohanty / July 29, 2024 /5 12345 Quiz-1: Electric Charges and Fields 1 / 5 The value of $\frac{1}{4\pi\epsilon_0}$ in SI unit is $10^9 N m^2C^{-2}$ $10^9 N m C^{-1}$ $9\times 10^9 N m C^{-1}$ $9\times 10^9 N m^2C^{-2}$ 2 / 5 The distance between two charges distance $r$ apart in a vacuum is $F$. The force between the same charges distance $r/2$ apart in a vacuum is $2F$ $4F$ $F/2$ $F/4$ 3 / 5 The magnitude of force experienced by an electron placed at a point in the electric field $\vec{E}$ equals its weight $m\vec{g}$. The magnitude of $\vec{E}$ is $\frac{mg}{e^2}$ $\frac{e}{mg}$ $mge$ $\frac{mg}{e}$ 4 / 5 The electric field intensity near a uniformly charged infinite plane thin non-conducting sheet with charge density $+\sigma$ placed in air is $\frac{+2\sigma}{\epsilon_0}$ $\frac{+\sigma}{3\epsilon_0}$ $\frac{+\sigma}{\epsilon_0}$ $\frac{+\sigma}{2\epsilon_0}$ 5 / 5 The ratio of the electric field intensity due to an electric dipole at an axial point to that at an equatorial point at the same distance from the centre is 1:2 2:1 1:1 1:4 Your score is 0% Restart quiz