Electrostatics

0

$\dfrac{q}{4\pi\varepsilon_{0}r^{2}}$

1

$\infty$

$H_{2}O$

$O_{2}$

$H_{2}$

$CO_{2}$

$E=\dfrac{CV^{2}}{2}$

$E=\dfrac{Q^{2}}{2C}$

$E=\dfrac{QV}{2}$

all of these

short distance

long distance

above each other

none of these

$\dfrac{1}{2}QV$

QV

$\dfrac{1}{QV}$

$\dfrac{2}{QV}$

$E\propto\dfrac{1}{r}$

$E\propto\dfrac{1}{r^{2}}$

$E\propto\dfrac{1}{r^{3}}$

$E\propto\dfrac{1}{r^{4}}$

$5\mu F$

$10\mu F$

$15\mu F$

$20\mu F$

work done on the charge continuously increases.

work is done by the charge.

work done on the charge is constant.

no work is done.

in figure (c) is the largest

in figure (b) is same as figure (c) but is smaller than figure (d)

is the same for all the figures

in figure (d) is the least

$\pi$ with direction of field.

$\dfrac{\pi}{2}$ with direction of field.

$\dfrac{3 \pi}{2}$ with direction of field.

zero with direction of field.

work is done on the charge.

work is done by the charge.

work done on the charge is constantly increasing.

work done to move a charge is zero.

$\dfrac{p}{4\pi\varepsilon_{0}r^{3}}$

$\dfrac{p}{4\pi\varepsilon_{n}r^{2}}$

zero

$\dfrac{2p}{4\pi\varepsilon_{n}r^{3}}$

must be positive

is zero

must be negative

data incomplete

$C=\dfrac{dk\varepsilon_{0}}{A}$

$C=\dfrac{Ak\varepsilon_{0}}{d}$

$C=\dfrac{d}{Ak\varepsilon_{0}}$

$C=A.d$

Coulomb/Newton-metre

Coulomb ${}^{2}$ /( Newton-metre)${}^{2}$

Newton-meter ${}^{2}/$ Coulomb ${}^{2}$

Coulomb ${}^{2}$ /Newton-meter ${}^{2}$