Question

How will you test whether a given rod is a magnet or not ?

Answer 1

Aim— To test whether a given rod is a magnet or not.
Apparatus —

1.  rod to be tested
2.  a bar magnet
3.  a stand
4.  a thread

Procedure —

1.  Suspend the rod to be tested with a thread on the stand.
2.  Bring the bar magnet near the rod with its north pole towards the rod’s end.
3.  Observe.

Inference — In every case, the magnet comes to rest in a north- south direction which shows its directive property.
Observation and Inference —
— If the rod is attracted towards the bar magnet, the rod may be magnet or not.
— But if the rod remains in the same direction of rest as in the start of the experiment, it show it is not a magnet.