(a) An electrostaic field line is a continous curve. That is a field line cannot have sudden breaks. Why not ?
(b) explain why two filed lines never cross each other at any point.

Answer

B

Explanation

An electrostatic field line represents that actual path travelled by a unit positive charge in an electric field. If the line have sudden breaks it means the unit positive test charge jumps from one place to another which is not possible. It also means that electric field becomes zero suddenly at the breaks which is not possible. So, the field line cannot have any sudden breaks.