What is the value of minimum force acting between two charges placed at 1 m apart from

each other?

If ,  $\oint_{ }^{ }\overrightarrow{E}.\overrightarrow{dS}=0$  inside a surface, that means :-

For a point charge, the graph between electric field versus distance is given by :-

What will be the value of electric field at the centre of the electric dipole : -

Charge on a conducting metal sphere present at :-

The value of electric field inside a conducting sphere having radius R and charge Q will be :

Which physical quantity have unit Newton /coulomb.

In the process of charging, the mass of the negatively charged body-

Four charges + 8 C, - 3 C, +5 C and -10 C are kept inside a closed surface. What will be the

outgoing flux through the surface.

Which Quantity is vector Quantity among the following -

Charge Q is kept in a sphere of 5 cm first than it is kept in a cube of side 5 cm. the outgoing

flux will be-

Electric field intensity due to a short dipole remains directly proportional to  $\overrightarrow{r}$  (distance of a point from centre of dipole )

On charging a neutral Balloon its size -

Electric field lines contracts lengthwise, It shows

When charge is supplied to a conductor, its potential depends upon

A parallel plate capacitor is charged by a battery. Once it is charged battery is removed.

Now a dielectric material is inserted between the plates of the capacitor, which of the

following does not change?

A dipole is placed parallel to electric field. If W is the work done in rotating the dipole from

0° to 60°, then work done in rotating it from 0° to 180° is

The variation potential V with r & electric field E with r for a point charge is correctly shown

in the graphs.

A charge Q is supplied to a metallic conductor. Which is true?

A parallel plate capacitor C has a charge Q. The actual charges on the plates are

The potential at the centre of the square is-

Two conducting spheres A and B of radii a & b respectively are at the same potential. The ratio of surface charge densities of A and B is

Work done to bring a unit positive charge un-accelerated from infinity to a point inside

electric field is called :

Electric field is always :

Electric field and electric potential inside a charged spherical shell

Shape of equipotential surface in uniform electric field will be :

On reducing potential across or capacitor, its capacitance of an object :

Energy stored in a in a charged capacitor is given by :

Capacitance of parallel plate capacitor when there is no medium between the plates is C₀. If capacitor is now completely filled with dielectric matter of constant K then capacitance :