a girl uses an experimental apparatus shown below. By connecting the switch, a current of 2.0 A
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a girl uses an experimental apparatus shown below. By connecting the switch, a current of 2.0 A will flow through the wires from P to Q. If the girl notes that the magnet produces a field of 2.0 T as shown in the diagram, and the length of wire within the field is 0.02 m, what is true concerning the magnetic force on the wire?
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