If we bring the north-pole of a bar magnet in the vicinity of a freely supported or suspended north-pole of another magnet (or a magnetic needle), it will be observed that the latter is repelled, but if the south-pole of one is brought near the north-pole of the other there will be attraction between the two poles.
Similarly the south-pole of the bar magnet will attract the north-pole and repel south-pole of the suspended magnet.
From the above, the following simple laws can be drawn:
1. Like Poles Repel each other
2. Unlike Poles Attract each other
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