ampere. A long, straight wire with a circular cross section of radius R carries a current I. Assume that the current density is not constant across the cross section of the wire, but rather varies as J = ar where a is a constant. What is the magnitude of the magnetic field B(r) for r ≤R? Ο A. B = μα Ο Β. Β= μα ο C. B = μα O D. Boar R³ =
ampere. A long, straight wire with a circular cross section of radius R carries a current I. Assume that the current density is not constant across the cross section of the wire, but rather varies as J = ar where a is a constant. What is the magnitude of the magnetic field B(r) for r ≤R? Ο A. B = μα Ο Β. Β= μα ο C. B = μα O D. Boar R³ =
Chapter12: Sources Of Magnetic Fields
Section: Chapter Questions
Problem 45P: A long, straight wire of radius R caries a current I that is distributed uniformly over the...
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