The Total solution for NCERT class 6-12
(a) Anelectrostatic field line is a continuous curve. That is, a field line cannothave sudden breaks. Why not?
(b) Explainwhy two field lines never cross each other at any point?
(a) Anelectrostatic field line is a continuous curve because a charge experiences acontinuous force when traced in an electrostatic field. The field line cannothave sudden breaks because the charge moves continuously and does not jump fromone point to the other.
(b) Iftwo field lines cross each other at a point, then electric field intensity willshow two directions at that point. This is not possible. Hence, two field linesnever cross each other.