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Two long parallel wires are separated by...

Two long parallel wires are separated by a distance of `2.50 cm`. The force per unit length that each wire exerts on the other is `4.00xx10^-5 N/m`, and the wires repel each other. The current in one wire is `0.600A`.
a. What is the current in the second wire ?
b. Are the two currents in the same direction or in opposite direction?

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