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If the moment of a magnet is 0.4 A m^(-1...

If the moment of a magnet is `0.4 A m^(-1)` and force seting on esch pote in a uniform magnetic field of induction `3.2 xx 10^(-5)"Wb/m"^(2)" is "5.12 xx 10^(-5)N,` the dstance berween the poles of magnet is

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