Electrostatics ...

When a charge of 3 coulomb is placed in a uniform electric field, it experiences a force of 3000 Newton within this field, potential difference between two points separated by a distance of 1 cm is

There are two equipotential surfaces as shown in figure. The distance between them is r. The charge of –q coulomb is taken from the surface A to B, the resultant work done will be

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10V. The potential at a distance of 2 cm from the centre of the sphere

The work done in carrying a charge of 5 µC from a point A to a point B in an electric field is 110 mJ. The potential difference (V_B–V_A) is then

Value of potential at a point due to a point charge is

There is 10 units of charge at the centre of a circle of radius 10m. The work done in moving 1 unit of charge around the circle once is

Two parallel plates separated by a distance of 5 mm are kept at a potential difference of 50V A particle of mass 10^–15kg and charge 10^–11C entres in it with a velocity 10⁷ m/s The acceleration the particle will be

The electric potential inside a conducting sphere

The wrong statement about electric lines of force is

Two infinitely long parallel conducting plates having surface charged density +σ and –σrespectively, are separated by a small distance. The medium between the plates is vacuum. If ɛ₀ is the dielectric permittivity of vacuum, then the electric field in the region between the plates is