Physics

Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is

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  1. You asked this already.
    I find multiple posts annoying.

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  2. f/1=u.l1l2/2πd
    f=4π*10^-7/2π*4
    f=4*10^-7/8
    f=5*10^-8N

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