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Unformatted text preview: Version 001 HW16 gavrin (25111) 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Decreasing Magnetic Field 001 10.0 points A circular conducting loop is held fixed in a uniform magnetic field that varies in time according to B ( t ) = B exp(- a t ) where t is in s, a is in s- 1 and B is the field strength in T at t = 0. At t = 0, the emf induced in the loop is 0 . 084 V . At t = 1 . 97 s, the emf is . 0304 V , . Find a . Correct answer: s- 1 . Flux Through a Loop 02 002 10.0 points A rectangular loop located a distance from a long wire carrying a current is shown in the figure. The wire is parallel to the longest side of the loop. 7 . 65cm 6 . 9 cm 38 . 4cm . 0452A Find the total magnetic flux through the loop. Correct answer: 2 . 23169 10- 9 Wb. Circular Magnetic Field 02 003 (part 1 of 3) 10.0 points A magnetic field directed into the page changes with time according to B =...
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This note was uploaded on 04/11/2011 for the course PHYS 251 taught by Professor Rader during the Spring '08 term at IUPUI.
- Spring '08