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प्रश्न
Circle the odd ones and give reason
विकल्प
Iron nail
pins
rubber tube
needle
उत्तर
Rubber tube.
Reason: Rubber tube is a non-magnetic substance, others are magnetic substances.
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संबंधित प्रश्न
What are magnetic and non-magnetic substances? Give two examples of each.
It is advised to keep the magnets away from television, mobiles, CD and computers Explain why?
The Materials which are attracted towards the magnet are called ______.
Write down the names of substances.
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Affect observed in each case is stated in Column I. Possible reasons for the observed affects are mentioned in Column II.
Match the statements given in Column I with those in Column II.
| Column I | Column II |
| Boat gets attracted towards the magnet | Boat is fitted with a magnet with north pole towards its head |
| Boat is not affected by the magnet | Boat is fitted with a magnet with south pole towards its head |
| Boat moves towards the magnet if north pole of the magnet is brought near its head | Boat has a small magnet fixed along its length |
| Boat moves away from the magnet when north pole is brought near its head | Boat is made of magnetic material |
| Boat floats without changing its direction | Boat is made up non-magnetic material |
Analogy:
Magnetic substance: Attracted by magnets
Non-magnetic substance: ______.
Among the following which one is a magnetic substance?
What are non-magnetic substances?
When the iron needle is rubbed with a bar magnet the needle gets magnetized. But the rubber piece is rubbed with a magnet it will not get magnetized. Why?
Suggest an activity to prepare a magnetic compass by using an iron needle and a bar magnet.
