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प्रश्न
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
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उत्तर
There are two techniques to recognise magnets.
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Take both metal bars and place them in the iron filings, then remove them immediately. The magnet will be filled with iron filings, while the regular metal bar will have no filings.
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Place a magnet near each of the metal bars one at a time. The magnetic bar that attracts or repels the magnet is magnetic, whilst the other is not.
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संबंधित प्रश्न
How will you test whether a given rod is made of iron or not?
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
Define the following term regarding a bar magnet:
Effective length
If a magnet attracts a piece of metal, that piece must be made of ______.
The alloys called ______ and ______ are used for making industrial magnets.
The real test of a magnet is ______.
What are magnetic keepers? What are they used for?
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
What will happen when we place magnets near cell phones, computers, and DVDs?
