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प्रश्न
How will you test whether a given rod is made of iron or not?
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उत्तर
Bring a magnet near the rod if the rod is attracted by the magnet then it will be made of iron else not.
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संबंधित प्रश्न
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
Write true or false of the following statement.
Magnetic poles occur in pairs.
Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
How will you do this?
Explain that a magnet has a certain magnetic field.
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
Thamizh Dharaga and Sangamithirai were playing with a bar magnet. They put the magnet down and it broke into four pieces. How many poles will be there?
Define artificial magnet.
