Question

What are ‘magnetic field lines’? How is the direction of a magnetic field at a point determined ?​

Answer 1

Answer:

A magnetic field line is the path along which a free north-pole tends to move. The direction of a magnetic field at a point is determined by placing a small compass needle. The N - pole of compass indicates the direction of magnetic field at that point.

Explanation:

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Answer 2

Answer:

$\huge\mathfrak\blue{Answer}$

a) A magnetic field line is the path along which a free north-pole tends to move. The direction of a magnetic field at a point is determined by placing a small compass needle. The N - pole of compass indicates the direction of magnetic field at that point.

(b)is in attachment

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