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प्रश्न
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
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उत्तर
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संबंधित प्रश्न
Write true or false for a given statement.
A current-carrying coil, when suspended freely, can rest in any direction.
Fill in the blank
Like poles ______ each other and unlike poles _____
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
How will you do this?
Determine whether a material is magnetic or non-magnetic.
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?
With the help of a diagram explain the following:
Magnetisation of an iron bar by a single touch method.
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.
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
Which is not attracted by a magnet?
