The electric potential at a certain distance from a point charge is 600V and the electric field is `200 N//C`. The distance of the point charge (in metres) is:

Determine the electric field at a distance r from a point charge.

Define electric potential. Determine the electric potential at a distance r from a point charge q placed in vacuum. What would be the change in the potential if the charge is placed in a medium of dielectric constant k?

Determine the potential at a distance r from a point charge +q. How can the potential at a point be determined due to a number of point charges?

The electric potential at an axial point of an electric dipole depends upon the distance r(>>a) of the point from the centre of the dipole as

Define potential at a point in an electric field.

What is the electric field intensity at a distance r from a charge q placed in vacuum ?

If the potential is constant around a point, what will be the electric field intensity at that point?

The electric potential energy of a unit charge placed at a point in an electrical field is the ________at that point. [Fill in the blank]

A given charge is situated at a certain distance from an electric dipole in the end on position experiences a force F. If the distance of the charge is doubled, force acting on the charge will be

A negative charge of 20 units is placed at a distance 50 cm away from a positive charge of 80 unit. Where will the electric field be zero on the line joining the two charges?