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प्रश्न
How will you test whether a given rod is a magnet or not ?
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उत्तर
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.
APPEARS IN
संबंधित प्रश्न
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Write true or false of the following statement.
Magnetic poles occur in pairs.
Write true or false of the following statement.
Copper cannot be magnetised.
Define the following term regarding a bar magnet:
Magnetic axis
How will you do this?
Determine whether a material is magnetic or non-magnetic.
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
An object that is attracted by magnet.
The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.
Consider the statement given below and choose the correct option.
Assertion: Iron filings are concentrated more at the magnetic poles.
Reason: The magnets are so sharp.
Which is not attracted by a magnet?
