Question

What are the properties of electric field lines?

Answer 1

Definition:

1. A curve drawn with the tangent to it at every point pointing in the orientation of the net field at that location is called electric field lines.
2. The S.I unit of the electric field line is $\mathrm{volts}\mathrm{per}\mathrm{meter}(\mathrm{V}/\mathrm{m})$.

Properties of electric field lines:

1. There are no field lines beginning or ending in the space around a charge. Every field line is originating from a ($+$) charge and ends on a ($-$) charge.
2. The field is stronger if the field lines are nearer together. The field appears uniform where the field lines are parallel and similarly spaced.
3. The field lines are perpendicular to the conductor's plane. If this were not the case, there would've been a constituent of the field all along the conductor's surface and a current would've flowed thru it. In an electrostatic environment, however, no current flows.
4. The field lines provide lateral loads or pressure to one another. This lateral pressure is responsible for the attraction between two similar charges.