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AP Physics 2
12.3 Magnetism and Current-Carrying Wires
AdvancedMCQMathematical15.4k
Three rectangular loops carrying current near a long, straight current-carrying wire.
Three rectangular loops carrying current near a long, straight current-carrying wire.
Three planar, rectangular loops of wire—labeled Loop 1, Loop 2, and Loop 3—each carry a constant current \(I\) in the counterclockwise direction. The loops are placed in the same plane as a long, straight wire carrying a constant current \(I_0\), with the left edge of each loop located at a distance \(d\) from the straight wire. Loop 1 has height \(L\) and width \(w\), Loop 2 has height \(2L\) and width \(w\), and Loop 3 has height \(L\) and width \(2w\). Which of the following correctly ranks the magnitude of the net magnetic force \(F_1\), \(F_2\), and \(F_3\) exerted on each loop by the magnetic field of the long wire?

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