Question
Equal charges are given to two spheres of different radii. The potential will

Answer

(a) $V = \frac{{kq}}{R}$ i.e. $V \propto \frac{1}{R}$
Potential on smaller sphere will be more.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

One mole of an ideal gas with $\gamma = 1.4$, is adiabatically compressed so that its temperature rises from $27°C$ to $35°C$. The change in the internal energy of the gas is ....... $J$ $(R = 8.3\,J/mol.K)$
A man is swinging on a swing made of $2$ ropes of equal length $L$ and in direction perpendicular to the plane of paper. The time period of the small oscillations about the mean position is
The total power dissipated in watt in the circuit shown here is ............. $W$
Following statements related to radioactivity are given below

$(A)$ Radioactivity is a random and spontaneous process and is dependent on physical and chemical conditions.

$(B)$ The number of un-decayed nuclei in the radioactive sample decays exponentially with time.

$(C)$ Slope of the graph of $\log _{e}$ (no. of undecayed nuclei) $Vs$. time represents the reciprocal of mean life time $(\tau)$.

$(D)$ Product of decay constant ( $\lambda$ ) and half-life time $\left(T_{1 / 2}\right)$ is not constant.

Choose the most appropriate answer from the options given below

Capacitance (in $F$) of a spherical conductor with radius $1\, m$ is
In a terrestrial telescope, the focal length of objective is $90\, cm$, of inverting lens is $5\,cm$ and of eye lens is $6\,cm.$ If the final image is at $30 cm$, then the magnification will be
Light of wavelength $4000 \,Å$ is incident on a sodium surface for which the threshold wave length of photo -electrons is $5420 \,Å$. The work function of sodium is .......... $eV$
Which of the following statements are correct?

$(A)$ Electric monopoles do not exist whereas magnetic monopoles exist.

$(B)$ Magnetic field lines due to a solenoid at its ends and outside cannot be completely
straight and confined.

$(C)$ Magnetic field lines are completely confined within a toroid.

$(D)$ Magnetic field lines inside a bar magnet are not parallel.

$(E)$ $\chi=-1$ is the condition for a perfect diamagnetic material, where $\chi$ is its
magnetic susceptibility.

Choose the correct answer from the options given below:

The resistance $\mathrm{R}=\frac{\mathrm{V}}{\mathrm{I}}$ where $\mathrm{V}=(200 \pm 5) \mathrm{V}$ and $I=(20 \pm 0.2) A$, the percentage error in the measurement of $R$ is :
$TV$ waves have a wavelength range of $1-10 \,meter$. Their frequency range in $MHz$ is