Ten electrons are qually spaced and fixed around a circle of radius `R`. Relative to `V = 0` at infinity, the electrostatic potential `V` and the electric field `E` at the centre `C` are

125 electrons are equally spaced and fixed around a circle of radius R. Relative to V = 0 at infinity, the electrostatic potential V and the electric field E at the centre C are

An electric charge Q is uniformly distributed around a semi-circle of radius a. Calculate the electric potential at the centre of this semi-circle.

The electric field and the electric potential at a point are E and V respectively.

The electric field and the electric potential at a point are E and V respectively.

n charged drops, each of radius r and charge q , coalesce to from a big drop of radius R and charge Q . If V is the electric potential and E is the electric field at the surface of a drop, then.

n charged drops, each of radius r and charge q , coalesce to from a big drop of radius R and charge Q . If V is the electric potential and E is the electric field at the surface of a drop, then.

Give the relation between electric field E and potential V.

A sphere of radius 5 cm has electrostatic potential at the surface of 50 V. Potential at the centre is:

An electron moves with a constant speed v along a circle of radius r . Its magnetic moment will be ( e is the electron's charge)