q10_c29_sol - Quiz 10 Phys. 2306 F09 You may use your text...

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Quiz 10 Phys. 2306 F09 You may use your text book, notes, and a calculator. A long straight wire is carrying constant current I in the +x direction. In (A) a metal rod of very small diameter is moving with constant velocity v in the +x diection. The rod’s axis is to the wire. The rod has length L and its closest edge, a, is a distance D from the wire. In (B) a rectangular metal loop of resistance R, one side of which could make the rod, moves with constant velocity v in either the +x or -y direction. 1)Which rod end is at the higher potential? a) a b) b c) neither d) insufficient info The wire, rod, and loop are in the plane of the paper. The +x direction is to the right and the -y direction is down as you read the paper. No one should assume gravity is part of the problem, as nothing concerning gravity was stated. All of this could take place on a frictionless, horizontal table top with you look- ing down on the table top. At any position in the rod the magnetic field due to the wire points into the paper. Thus magnetic force on a free electron in the rod
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q10_c29_sol - Quiz 10 Phys. 2306 F09 You may use your text...

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