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Suppose you have a long straight wire AB, carrying a current in the direction shown in the figure. Below this wire is a rectangular loop 20 cm long and 5 cm wide, carrying a current of equal magnitude to the wire, where the long sides are parallel to the wire. The wire and the loop both have a linear density equal to 0.0125 kg/m. The separation between the upper long side of the loop and the wire is 1 cm.
Find the magnitude of the current ? flowing through both the wire and the loop.
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