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# hw16 - Version 001 HW16 gavrin(25111 This print-out should...

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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. DecreasingMagneticField 001 10.0points A circular conducting loop is held fixed in a uniform magnetic field that varies in time according to B ( t ) = B 0 exp( - at ) 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 0 . 0304 V ,. Find a . Correct answer: s - 1 . FluxThroughaLoop02 002 10.0points 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 . 65 cm 6 . 9 cm 38 . 4 cm 0 . 0452 A Find the total magnetic flux through the loop. Correct answer: 2 . 23169 × 10 - 9 Wb. CircularMagneticField02 003(part1of3)10.0points A magnetic field directed into the page changes with time according to B = a + bt 2 , where a = 1 . 63 T, b = 0 . 03 T / s 2 , and t is in seconds. The magnetic field pole has a

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hw16 - Version 001 HW16 gavrin(25111 This print-out should...

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