Question

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

Answer 1

Explanation:

(1)VECTOR FIELD THAT DESCRIBES THE MAGNETIC INFLUENCE OF ELECTRIC CHARGE IS CALLED MAGNETIC FIELD.

(2)NORTH END OF COMPASS NEEDLE

(3) THEY NEVER INTERSECTS EACH OTHER

THEY ARE IN CLOSED CURVES

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Answer 2

The imaginary lines representing magnetic field around a magnet are known as magnetic field lines.

The direction of the magnetic feild at a point can determined using Maxwell's right hand thumb rule.

Two important properties of magnetic field lines are:-

1. The magnetic field lines are closed and continuous curves.

2. They never intersect each other.