CHSE Physics Quiz-1: Electric Charges and Fields

By amohanty / July 29, 2024

Quiz-1: Electric Charges and Fields

1 / 5

The electric field intensity near a uniformly charged infinite plane thin non-conducting sheet with charge density $+\sigma$ placed in air is

$\frac{+\sigma}{3\epsilon_0}$

$\frac{+2\sigma}{\epsilon_0}$

$\frac{+\sigma}{\epsilon_0}$

$\frac{+\sigma}{2\epsilon_0}$

2 / 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

$mge$

$\frac{mg}{e^2}$

$\frac{e}{mg}$

$\frac{mg}{e}$

3 / 5

The value of $\frac{1}{4\pi\epsilon_0}$ in SI unit is

$9\times 10^9 N m^2C^{-2}$

$10^9 N m C^{-1}$

$10^9 N m^2C^{-2}$

$9\times 10^9 N m C^{-1}$

4 / 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

$4F$

$2F$

$F/2$

$F/4$

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

1:4

1:1

2:1

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