HW12 - Sample(new version Betancourt(mb6366 HW12...

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Betancourt (mb6366) – HW12 – Betancourt – (35561) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Covers 28.6-28.8 001 (part 1 of 4) 7.0 points The figure below shows a straight cylinderical coaxial cable of radii a , b , and c in which equal, uniformly distributed, but antiparallel currents i exist in the two conductors. O i out i in F E D C r 1 r 2 r 3 r 4 c b a Which expression gives the magnitude of the magnetic field in the region r 1 < c (at F )? 1. B ( r 1 ) = μ 0 i 2 π r 1 2. B ( r 1 ) = μ 0 i r 1 2 π b 2 3. B ( r 1 ) = μ 0 i π r 1 4. B ( r 1 ) = μ 0 i ( a 2 r 2 1 ) 2 π r 1 ( a 2 b 2 ) 5. B ( r 1 ) = μ 0 i r 1 2 π c 2 6. B ( r 1 ) = 0 7. B ( r 1 ) = μ 0 i r 1 2 π a 2 8. B ( r 1 ) = μ 0 i ( r 2 1 b 2 ) 2 π r 1 ( a 2 b 2 ) 9. B ( r 1 ) = μ 0 i ( a 2 + r 2 1 2 b 2 ) 2 π r 1 ( a 2 b 2 ) 10. B ( r 1 ) = μ 0 i ( a 2 b 2 ) 2 π r 1 ( r 2 1 b 2 ) 002 (part 2 of 4) 7.0 points Which expression gives the magnitude of the magnetic field in the region c < r 2 < b (at E )? 1. B ( r 2 ) = μ 0 i ( a 2 + r 2 2 2 b 2 ) 2 π r 2 ( a 2 b 2 ) 2. B ( r 2 ) = μ 0 i 2 π r 2 3. B ( r 2 ) = μ 0 i ( a 2 b 2 ) 2 π r 2 ( r 2 2 b 2 ) 4. B ( r 2 ) = μ 0 i (
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