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प्रश्न
Tick the most appropriate answer.
The surest test of magnetism is
विकल्प
attraction
repulsion
diffusion
hammering
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उत्तर
repulsion
संबंधित प्रश्न
Write true or false for a given statement.
A current-carrying coil, when suspended freely, can rest in any direction.
What is a magnetic compass ? State its use.
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
State three important uses of a magnet.
What is the magnetic induction? Explain with the help of a diagram.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Answer the following in detail.
Write a short note on the theory of magnetism.
Define the following term regarding a bar magnet:
Magnetic equator
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
When magnetic material is taken close to a magnet, the material acquires ______.
Describe two simple experiments to support the statement that magnetism is a property of the molecules of a magnet.
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic, north.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Define the term Poles of a magnet
Distinguish between
Natural and artificial magnets.
A magnet attracts ______.
The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.
Magnets are used in _______ for generating electricity.
Match the following:
| 1. | Electricity and magnetism | a. | Step-down transformer |
| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
