whatis the single and double touch method is?

 

The single touch method is when you take one bar magnet and a needle.Take the needle and place it horizontally.Now hold the bar magnet vertically in your hand and move it on the needle to one end of the needle.Go on doing this 30-40 tiomes.

The double touch method is also easy.Take two bar magnets.Hold them vertically in the centre and move them vertically on both sides of the neddle.Again bring it to the centre and do the same process.Continue this 10-15 times and then check wether does it attract other magnetic substances.If it attracts then it is an artificial magnet and if it does not attract then try to do the same process again.

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The only difference between a single and double touch method is that one magnet is used in single touch and two magnets are used in double touch method.

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thank you tanvi nidar

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The double-touch method is similar to the single-touch method, except that two bar magnets of equal strengths are used instead of one. [ - ] In the single-touch method, an iron bar is rubbed with a magnet repeatedly.
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YOU HAVE TOLD YOURSELF
 
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hiiiiiiiiiiiii
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both are almost same
 
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yes they are
 
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Single-touch method is a method of magnetising a magnetic substance by rubbing with a magnet. Double touch method is a method of magnetising a magnetic substance by rubbing with a pair of magnets.
 
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Hisar Tere Karde ne
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