How a piece of iron can be magnetized by a single touch method?
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In the single-touch method, an iron bar is rubbed with a magnet repeatedly. ... On reaching end B of the iron bar, lift the bar magnet, bring the same north pole to point A of the iron bar, and then rub move the magnet from point A to point B again. The process needs to be repeated about 30 to 40 times.......
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Answer:first stroke a end of a iron piece with a bar magnet.then without lifting it up take it to the other end of the bar magnet.Take it back without lifting the magnet up take it to the end where you started .Repeat the process 30 - 40 times.Check the magnet has beeen magnestised or not .If not repeat the process unit the iron piece has got magnetised . Hope this helps if not I am really sorry.
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