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11. A pair of parallel wires are each carrying currents of 25 A in opposite directions. The wires are separated by a perpendicular distance of 0.5 cm. The force per unit length between the wires is: A) zero B) 0.025 N/m, repulsion C) 0.025 N/m, attraction D) 0.22 N/m, repulsion E) 0.22 N/m, attraction
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