Question

What are magnetic lines? How is the direction of a magnetic field at a point determined ? Mention 2 important properties of the magnetic lines.​

Answer 1

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• The direction of the magnetic field at a point can be found by placing a small magnetic compass at that point. The north end of the needle indicates the direction of the field. Two important properties of the magnetic lines of force are: The magnetic lines of force start from north pole and terminate at south pole.

$\sf{Answer\:by\:UnicornRahuL}$

Answer 2

Answer:

1.Magnetic Lines of Force is a an imaginary line representing the direction of magnetic field such that the tangent at any point is the direction of the field vector at that point.

2.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.

3.The field is tangent to the magnetic field line.

Field strength is proportional to the line density.