Question

North pole a magnet can be identified by?

Another magnet having its poles marked as North and South pole

Another magnet no matter whether the poles are marked or not

Using an iron bar

Using iron fillings​

Answer 1

another magnet whether its pole are marked or not

Explanation:

as if we take 2 magnets and bring them together like poles gets away from each other and unlike poles get attracted.

hope it helps:-)