Class 12 Physics Chapter 2 Online Test – Electrostatic Potential and Capacitance

Eight drops each of radius r and charge q of are merged to form a single drop . the ratio of the potential of big dropped to a small drop is

The capacitance of a spherical capacitor is directly proportional to its

Dielectric constant for vacuum is

Sum of charges on collecting and conducting plate of a charged capacitor is-

Electric potential of earth is taken to be zero because the earth is good

The electric dipole moment per unit volume of a dielectric medium is called

The electric potential due to electric dipole at the point lies on the bisector of its axis is-

Two capacitor each of capacity C are connected in parallel .The equivalent capacity is

In a region of constant potential

The net charge on a charged capacitor is

Potential gradient is equal to

When I show bubble is charged its radius will

If the distance between the two charges is increased then the electrostatic potential energy of the charges

When a body becomes negatively charged , its mass

The capacitance of a parallel plate capacitor by the introduction of a dielectric between the plates of the capacitor.

If an earthed conductor is brought near an insulated conductor then the capacity of insulated conductor?

If a dielectric is placed between two plates of a parallel plate capacitor, the value of capacitance-

The work done by electric field on a charged taken from one point to another of an equipotential surface will be

The electric potential inside the charged the hollow sphere is-

Which are the following value of n is not possible in relation Q= ne?

The dielectric constant of water is-

Van de graff generator is used for producing

A dielectric constant 6 is to be filled in the gap between plates of a parallel plate capacitor. what is the factor by which the gap should be changed to maintain the same capacitance?

The value of electric field inside a charge is spherical conductor is

Electric potential at the centre of a charged hollow metal sphere is

The dielectric constant of water is

Three condenser of equal capacity C are connected first in parallel and then in series .the ratio of equivalent capacity in both conditions is-

Linear charge density is equal to

The loss of energy taking place due to sharing of charge between two conductors depends upon

Three condenser each of capacity C are connected in the series then there equivalent capacity will be

If a dielectric slab is introduced in between the two plates of capacitor then its capacitance

A point charge q is rotated around another point charge Q in a circular path work done by electric field on it will be

If a proton is brought near another proten then its potential energy-

When a medium of dielectric constant k fills the gap between the plates of a capacitor its capacitance compared to air filled state-

The value of electric potential at a distance r from a point charge is

The capacity of any conductor is

An electron of charged e coulomb passes through a potential difference of V volt its energy in joule will be