Q1 of 39 Page 224

Why does a compass needle get deflected when brought near a bar magnet ?

A compass needle is a tiny pivoted magnet. It gets deflected when it is brought near a bar magnet because the bar magnet exerts a magnetic force on the compass needle.


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1

Draw magnetic field lines around a bar magnet.

 2

List the properties of magnetic lines of force.

 3

Why don't two magnetic lines of force intersect with each other?

 1

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of the magnetic field inside and outside the loop.