Question

What questions to ask to correct that magnetic field lines are closed ?

Answer 1

Answer:

HI

Explanation:

I dont clearly understand what you mean by the question

let me try to give an answer based on what i understood

you need a reason to know why magnetic field lines are closed,i hope.....

Since monopoles don't exist. What it means is that a north pole can never be extracted independent of a south pole. So independent sources and sinks of lines of force don't exist unlike electrostatics, where a positive charge can be isolated from a negative charge (but a north pole can not be isolated from a south pole). Hence because sources and sinks don't exist, there is no concept of beginning/termination of lines of force (unlike electrostatics wherein lines of force begin in the +ve charge and terminate in the negative charge). The only way a curve can have no beginning or ending is if the curve loops into itself. Hence magnetic lines of forces create closed loops.

Hope this helps.

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