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प्रश्न
With the help of a diagram explain the following:
Magnetisation of an iron bar by a single touch method.
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उत्तर
The magnetization of Iron Bar by Single Touch Method: Place the iron piece on the table and stroke it with a bar magnet from A to B with one end of the magnet. When the magnet reaches B it is lifted and brought back to A to repeat the stroke. After a few strokes, we will notice that A has acquired the same polarity as the pole rubbed against it.
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संबंधित प्रश्न
How will you test whether a given rod is made of iron or not?
Select the correct answer
An example of natural magnet is
Give a reason for the following.
Iron is a magnetic substance.
Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
If a magnet is carefully broken into two pieces as shown in figure (i), how does the magnetic strength of each piece compare with that of the original magnet? If another magnet is carefully broken in half along its long axis shown in figure (ii), how would the strength of each piece compare with that of the original magnet?
Artificial magnets are made in different shapes such as ______, _____ and _______.
Match the following.
| Magnetite | Magnetic lines |
| A tiny pivoted magnet | Natural magnet |
| Cobalt | Compass box |
| Closed curves | Ferromagnetic material |
| Bismuth | Diamagnetic material |
What is the connection between electricity and magnetism?
