Explain why it is not possible for a line to have a mid-point.

Why it is not possible for a line to have midpoint?

Explain why it is not possible to magnetise an iron rod beyond a certain limit ?

Explain why sky wave propagation is not possible for high frequency radiowaves ?

(a) an electrostatic field line is a contiuous curve that is field line cannot have sudden breaks why not (b) explain why two field lines never cross each other at any point