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Question
How will you test whether a given rod is a magnet or not ?
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Solution
Aim— To test whether a given rod is a magnet or not.
Apparatus —
- rod to be tested
- a bar magnet
- a stand
- a thread
Procedure —
- Suspend the rod to be tested with a thread on the stand.
- Bring the bar magnet near the rod with its north pole towards the rod’s end.
- 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.
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