Draw lines of force to represent a uniform electric field?

Draw an equipotential surface in a uniform electric field?

An electric charge e moves with a constant velocity v parallel to the lines of force of a uniform magnetic field B, the force experienced by the charge is:

An electric dipole free to move is placed in a uniform electric field. Explain with a diagram. Its motion, when it is placed perpendicular to the field.

An electric dipole free to move is placed in a uniform electric field. Explain with a diagram. Its motion, when it is placed parallel to the field.

What is the shape of equipotential surfaces for a uniform electric field?

A proton and an electron are placed in a uniform electric field . Then