Figure shown a charged conductor resting on an insulating stand. If at the point `P` the charge density is `sigma`, the potential is `V` and the electric field strength is `E`, what are the values of these quantities at point `Q` ?

A point P is at a distance r from a point charge q. if at point P, the electric potential is 300 V, and the electric field intensity is 75 V/m, then the distance of P from the point charge is

At a certain distance from a point charge the electric potential is 200V and electric field is 200 V/m. What is this distance?

A conductor with a cavity is charged positively and its surface charge density is sigma . If E and V represent the electric field and potential, then inside the cavity

A conductor with a cavity is charged positively and its surface charge density is sigma . If E and V represent the electric field and potential, then inside the cavity

The electric potential at a point in the electric field is V. What is the electric potential energy of a charge q_0 placed at that point?

The distance between two points A and B in vacuum is 2d. At each of these two points a + Q charge is placed. P is the midpoint of AB. Find the intensity and potential at P due to the electric field. How will the values of these quantities change if the charge at B is replaced by a charge -Q ?