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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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