determine the magnetic field between 2 long straight wires 2cm apart in terms of the current (I) in one, when the other carries 15A. Assume currents are in the same direction.(adsbygoogle = window.adsbygoogle || []).push({});

okay so if they're in the same direction the field should be up

now I'm guessing I should use (4pi x 10^ -7)/(2pi) (I1 x I2)/(d) = F/l

now from that I'm guessing the length of the wire is no a factor here

so I get ((2 x 10 ^ -7)(I1 x I2))/d = F

now.... where should I go from here?

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# Determine the magnetic field between 2 long straight wires

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