Three long parallel wires are 3.8 cm from one another.
Chapter 15, Problem 45P(choose chapter or problem)
Three long parallel wires are \(3.8 \mathrm{~cm}\) from one another. (Looking along them, they are at three corners of an equilateral triangle.) The current in each wire is \(8.00 \mathrm{~A}\), but its direction in wire M is opposite to that in wires N and P (Fig. 20-60). Determine the magnetic force per unit length on each wire due to the other two.
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