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Unformatted text preview: mcconnell (kam2342) – oldhomework 22 – Turner – (60230) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 6) 10.0 points A rolling axle is pushed along horizontal rails, ℓ = 0 . 535 m apart, at a constant speed v = . 479 m / s. A resistor R = 18 . 2 Ω is connected to the rails at points a and b as shown in diagram and is the only significant resistance in the loop. There is a uniform magnetic field B = 3 . 15 T vertically downward. a b R v B rolling axle What is the induced current in the resistor? Answer in units of A. 002 (part 2 of 6) 10.0 points What is the magnitude of the horizontal force F required to keep the axle rolling at constant speed? Answer in units of N. 003 (part 3 of 6) 10.0 points Which end of the resistor ( a or b ) is at the highest potential while the axle is still to the right of the resistor?...
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This note was uploaded on 11/22/2010 for the course PHYS 303 taught by Professor Turner during the Spring '10 term at University of Texas.
- Spring '10