If L be the length of a bar magnet then seperation bet. the 2 poles is nearly____?

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If L be the length of a bar magnet then seperation bet. the 2 poles is nearly____?

Rohan kumar 26th Jan, 2019

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Reporter Student Expert 26th Jan, 2019

Hello Rohan,

I would like to tell you that the answer would be (6/7)L

It’s like a rule of thumb that the effective length of a bar magnet is considered to be around 85% of its geometrical length. Physically it signfies that in reality the magnetic poles do not resides at the ends of the bar magnet but a litlle inside them.

Hope this helps and all the very best!

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