Question

a bar magnet has no marking to indicate its pole. how would you find out its North pole?​

Answer 1

Unless they came marked with “N” or “S,” the poles of a magnet look the same. One easy way to tell which pole is north and which is south is to set your magnet near a compass. The needle on the compass that normally points toward the north pole of the Earth will move toward the magnet’s south pole. Wanna know a secret? This works because the needle in a compass is actually a magnet! So the north pole of the compasses’ needle magnet is attracted to the south pole of your magnet.

You can try this experiment at home!

Put a small piece of masking tape on one end of a bar magnet.Tie a string around the middle of your magnet.Dangle the magnet from the string and then from a ruler. Watch as one end orients itself toward the north. This is the magnet’s north pole.If that is the end with the masking tape, write “N” on the tape. If the other end has the tape, write “S.”

Answer 2

Answer: We can find out a direction by freely suspending a bar magnet. We will find that freely suspended bar magnet always comes to reset in a North- South direction.

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Explanation: