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Unformatted text preview: Platt, David Homework 22 Due: Oct 31 2005, 4:00 am Inst: Ken Shih 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points A(n) 0 . 58 m length of wire moves across a 2 . 14 T magnetic field. At what speed would it have to move to induce an EMF of 13 . 1 V? Answer in units of m / s. 002 (part 1 of 1) 10 points A135-turn5cmsquarewirecoilrotatesabout a vertical axis at 1210 rev / min. The horizon- tal component of the Earths magnetic field at the location of the loop is 2 . 8 10- 5 T. B x = 2 . 8 10- 5 T B x = 2 . 8 10- 5 T 5cm 5 c m 1210 rev / min Calculate the maximum emf induced in the coil by Earths field. Answer in units of mV. 003 (part 1 of 2) 10 points The resistance of the rectangular current loop is R , and the metal rod is sliding to the left....
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