Question

Write the importance characteristic of magnetic field

Answer 1

They always form closed loops.

No two magnetic lines intersect.

Outside they seems to travel from north to south and inside south to north.

They leave NORTH pole and enter SOUTH pole normally.

It is vector quantity.

The magnetic field lines are crowded near the pole where the field is strong and far from the magnet where the field is weak.

In case the field lines are parallel and equidistant, they represent a uniform magnetic field. The Earth’s’ magnetic field is a uniform limited space.

Answer 2

importance characteristic of magnetic field:

1. Magnetic lines of force start from the North Pole and end at the South Pole.  2. They are continuos through the body of magnet  

3. Magnetic lines of force can pass through iron more easily than air.

4. Two magnetic lines of force can not intersect each other.  

5. They tend to contract longitudinally.  

6. They tend to expand laterally