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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
“Poles exist in pair”. Comment on this statement ?
Tick the most appropriate answer.
The surest test of magnetism is
Fill in the blank.
The perpendicular bisector of the line joining the two poles of a magnet is called ...................
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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Define the term Effective length of a magnet
State three important properties of a magnet.
State the laws of magnetism.
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
Define the terms magnet and magnetism.
