Question

why the compass needle deflected more when it moves to the direction of bar magnet pole​

Answer 1

Answer:

because it contains magnetic field or force

Answer 2

Answer:

The magnetic field due to a bar magnet is highest near its two poles. Therefore, the force exerted by the bar magnet on the compass needle is larger in such a region. That is why the deflection of the compass needle increases when it is moved towards the pole of a bar magnet.