Practical of Bar magnet for standard 8 to 12

Bar Magnet

Take two bar magnets and mark their north and south poles as explained. Suspend one of the bar magnets using a thread. Bring the north pole of the second magnet near the north pole of the suspended magnet. Observe what happens. Now bring the South Pole of the second magnet near the south pole of the suspended magnet. Observe what happens. Now bring unlike poles of the two magnets close to each other and observe.  Repeat the experiment several times using magnetic needles, generalize your Observation

Bar Magnet Attract

Bar Magnet Repel

Remember 

Like poles of two magnets repel each other

 and

 unlike poles attract each other.

This is called the law of magnetic poles.