Question

What is an electric line of force? What it is it important?

Answer 1

Some of its important characteristics are: Lines of force originate from a positive charge and terminate to a negative charge. The tangent to the line of force indicates the direction of the electric field and electric force.Electric lines of force are always normal to the surface of charged body

Answer 2

Answer:

The electric lines of force never cross each other or intersect at a common point because if they did, it would mean two different directions of the electric field at the point of intersection, which is impossible.

It is important because the tangent drawn at any point on a line of force gives the direction of the electric field at that point.