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प्रश्न
You are provided with an iron needle. How will you magnetize it?
उत्तर
- Place the iron needle on the table.
- Take a bar magnet and place one of its poles near one edge of the iron needle.
- Rub from one end to another without changing the direction of the pole of the magnet.
- Repeat the process 30 to 40 times. The needle will be magnetized.
- If it will not attract pin or iron fillings continue the same process for some more time.
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