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3. Two wires A and B lie horizontally and carry current to the north. IÃ = 12 A and /B = 18A, but there are 28 mm between the wires. a) What is the strength and direction of the magnetic field between the wires? b) How much force is applied to each meter of one wire from the other wire? c) Let us now consider that the third wire, C, is placed 12 mm directly above wire A but-parallel to it. Wire C carries 25 A current to the south. How much force then acts on Cfrom the other two wires? What is the direction of the force on C?

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