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## Homework Statement

Calculate the magnitude of the magnetic field at a point midway between two long, parallel wires that are 1.0m apart and have currents if 10A and 20A, respectively, if the currents are a) in opposite directions, and b) in the same direction.

## Homework Equations

µ = 4*pi*10^-7

B = µ(I/2*pi*r)

## The Attempt at a Solution

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