Potential at centre of uniformly charged arc of radius 'R.(charge on the arc is 'Q')?

If the potential at the centre of a uniformly charged hollow sphere of radius R is V, then electric field at a distance r from the centre of sphere will be (rgtR) .

An unchanged conducting sphere of radius R is placed near a uniformly charge ring of radius R. Total charge on ring is Q. The centre of sphere lies on axis of ring and distance of centre of sphere from centre of ring is R

Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is lamda

The electric potential due to uniformly charged sphere of radius R ,having volume charge density rho having a spherical cavity of radius R/2 as shown as in figure at point p is

Which graph best represents the variation of electric potential as a function of distance from the centre of a uniformly charged solid sphere of charge of radius R ?

A point charge q_(0) is placed at the centre of uniformly charges ring of total charge Q and radius R. If the point charge is slightly displaced with negligible force along axis of the ring then find out its speed when it reaches a large distance.

Figure shows a uniformly charged sphere of radius R and total charge Q. A point charge q is situated outside the sphere at a distance r from centre of sphere. Find out the following : (i) Force acting on the point charge q due to the sphere. (ii) Force acting on the sphere due to the point charge.

Flux (ph) as a function of distance (r) from centre of uniformly charged solid sphere of charge Q and radius R , is best represented by

The electric field due to uniformly charged sphere of radius R as a function of the distance from its centre is represented graphically by

The electrostatic potential of a uniformly charged thin spherical shell of charge Q and radius R at a distance r from the centre