A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

A point charge q is placed at the origin. How does the electric field due to the charge vary with distance r from the origin?

A point-charge q is placed at the origin. How does the electric field due to the charge vary with distance r from the origin?

A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is v . The work done by an external force in bringing another charge q from infinity up to the point is

A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is V . The work done by an external force in bringing another charge q from infinity up to the point is

How does electric field at a point change with distance r from an infinitely long charged wire?

A point charge Q is placed at the origin . Find the electrostatic energy stored outside the sphere of radius R centred at the origin.

A point charge Q is placed at the origin . Find the electrostatic energy stored outside the sphere of radius R centred at the origin.

A conducting shell of radius R carries charge–Q. A point charge +Q is placed at the centre of shell. The electric field E varies with distance r (from the centre of the shell) as :