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[" The force acting on each pole of a ma...

[" The force acting on each pole of a magnet when "],[" placed in a uniform magnetic field of "7A/m" is "],[4.2times10^(-4)N" .If the distance between the poles is "],[10cm" ,the moment of the magnet is "],[" 1) "(15)/(pi)],[" 3) "7.5times10^(-12)Am^(2)quad " 2) "(pi)/(15)Am^(2)],[" 4) "6times10^(-6)Am^(2)]

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