Question

Which is NOT a property of magnetic field lines?

Answer 1

The correct answer is (b) They can be directly observed.

Answer 2

Answer:The correct answer is option (b).

Explanation:

Properties of magnetic lines:

• They from closed loop from pole to pole.
• They never intersect each other.
• They are stronger near the poles as compare to lines in the middle.
• They move from north to south pole in air and from south to north in the interior of the magnet.
• Their density decreases as they move away from the poles.
• They are not visualized by eyes.

Option (b) is correct as magnetic field lines cannot be directly observed.