Define electric field lines.

State the properties of electric field lines.

Define an electric field.

Explain why, for any charge configuration the equipotential surface through a point is normal to the electric field at that point. Draw a sketch of equipotential surfaces due to a single charge (-q), depicting the electric field lines due to the charge.

Explain— Electric field lines cut the equipotential surface normally.

The electric field lines pass through an equipotential surface _______. [Fill in the blank]

A few field lines moving from left converge on the right side. The electric field intensity will be greater at the ______________ . [Fill in the blank]

Deduce the relation between electric field intensity and potential at a point in an electric field.

The line charge density of a semicircular ring of radius R is lambda . Find electric field intensity at the centre of the ring. What is the total charge of an electric dipole?

Define electric flux and electric flux density. Write the dimension of electric flux.