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Homework Statement
Part of a single rectangular loop of wire with dimensions shown is situated inside a region of uniform magnetic field of 0.55T. The total resistance of the loop of 0.230ohms. Calculate the force required to pull the loop from the field (to the right) at a constant velocity of 3.4m/s. Neglect gravity.
http://img508.imageshack.us/img508/8268/asdfdr5.jpg
The Attempt at a Solution
Really don't know where to start! I'm not sure which equations are relevant as F=nBIL will not work because I don't know the current!
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