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AP Physics 2
12.3 Magnetism and Current-Carrying Wires
12.1 Magnetic Fields
AdvancedMCQConceptual19.3k
Two parallel current-carrying wires separated by distance d with mutual attractive magnetic forces.
Two parallel current-carrying wires separated by distance d with mutual attractive magnetic forces.
Two long, parallel, straight conducting wires, labeled Wire X and Wire Y, are separated by a distance d in a vacuum. Wire X carries a constant current of 10 A, and Wire Y carries a constant current of 2 A in the same direction. A student correctly predicts that both wires experience attractive magnetic forces of equal magnitude. Which of the following statements provides the best physical explanation for why the two magnetic forces are equal in magnitude despite the currents being unequal?

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