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प्रश्न
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
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उत्तर
| Group 'A' | Group 'B' |
| (a) Compass | 4. A magnetic needle |
| (b) The door of a cupboard | 3. A magnet |
| (c) Repulsion | 2. Like poles |
| (d) Magnetic pole | 1. The highest magnetic force |
संबंधित प्रश्न
Give a reason for the following.
Iron is a magnetic substance.
If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ______ bar magnets are formed, and a total of _____ poles are formed.
Explain the mechanism by which unmagnetized iron nails get attracted to a magnet when brought near it.
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
Distinguish between
Natural and artificial magnets.
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
How can you identify non-magnetic materials? Give an example of a nonmagnetic material.
List out the uses of magnets.
