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Posted by on Wednesday, January 15, 2014 at 12:38am.

Magnetic force between two poles is 80 unit. Separation between poles is doubled. What is force between them?

  • Physics - , Wednesday, January 15, 2014 at 3:18pm

    it follows an inverse law...

    what is 30/4 ?

  • Physics - , Wednesday, January 15, 2014 at 11:18pm

    30/4 = 7.5

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