Question

What are magnetic field lines? Give theirimportant properties.​

Answer 1

ANSWER: Magnetic fields can be pictorially represented by magnetic field lines, the properties of which are as follows: The field is tangent to the magnetic field line. Field strength is proportional to the line density. Field lines cannot cross.

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Answer 2

Answer:

Magnetic field lines are the lines drawn in a magnetic field along which north magnetic  pole would move. The direction of a magnetic field at a point is determined with the help of a small magnetic compass. When a compass is moved along the magnetic line, then direction of  called pulvini present at the base of all leaves