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AP Physics 2
12.3 Magnetism and Current-Carrying Wires
AdvancedMCQMathematical23.5k
A long horizontal wire carries a current I_1 to the right. Below the wire, a rectangular wire loop of width w and length L is shown in the same plane. The top edge of length L is horizontal and separated from the long wire by a vertical distance d. The loop carries a counterclockwise current I_2, indicated by small arrows along its edges. The width w extends vertically downward from the top edge. No other labels, lines, text, or axes appear.
A rectangular wire loop near a long current-carrying wire.
A long, straight wire lies in the plane of the page and carries a steady current \(I_1\) to the right. A coplanar rectangular wire loop with length \(L\) and width \(w\) lies below the straight wire, with its top edge of length \(L\) parallel to the straight wire and located at a distance \(d\) from it. The loop carries a steady counterclockwise current \(I_2\). In terms of \(I_1\), \(I_2\), \(L\), \(w\), \(d\), and fundamental constants, what is the magnitude of the net magnetic force exerted on the loop by the magnetic field of the straight wire?

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