HW21 - Platt, David Homework 21 Due: Oct 28 2005, 4:00 am...

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Unformatted text preview: Platt, David Homework 21 Due: Oct 28 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 2) 10 points Given: B = bt , where b = 0 . 9 T / s (lower figure). Consider a changing magnetic field (from B to B , upper figure) within a circle of radius 4 m. The magnetic field is pointing into the page and its magnitude is increasing. 4 m B B B 4 m B B B ~ t ~ B B B Find the direction of the induced emf E ind . 1. clockwise 2. counter-clockwise 3. out of the page 4. into the page 002 (part 2 of 2) 10 points Find the magnitude of the induced electric field E ind on the perimeter of the circular magnetic field. Answer in units of V / m. 003 (part 1 of 1) 10 points A rectangular loop of wire is pulled through a magnetic field B (out of the page). Shown below are four different stages of development of this procedure, labeled...
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This note was uploaded on 07/26/2009 for the course PHY 303L taught by Professor Turner during the Fall '08 term at University of Texas at Austin.

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HW21 - Platt, David Homework 21 Due: Oct 28 2005, 4:00 am...

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