Instead of a capacitor in a circuit, we can get the same effect by slicing a thick
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Instead of a capacitor in a circuit, we can get the same effect by slicing a thick wire in two, making our cut perpendicular to the wire's long axis. If the wire diameter is \(10.0 \mathrm{~mm}\) and we place the two parallel circular surfaces of the cut wire \(0.010 \mathrm{~mm}\) apart, what is the magnetic field magnitude at a position that lies between the two surfaces and is \(2.0 \mathrm{~mm}\) from the long central axis of the wire at the instant the current in the wire is \(2.0 \mathrm{~A}\) ? Assume the charge carriers that create the current are uniformly distributed over the cross-sectional area of the wire.
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