A long, straight wire with a circular cross section of radius K carries a current 1. Assume that the current density hot 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 Α. Β = μια 8R Ο Β. Β = μια O C. B = Hoa K OD. B = μ₁α
A long, straight wire with a circular cross section of radius K carries a current 1. Assume that the current density hot 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 Α. Β = μια 8R Ο Β. Β = μια O C. B = Hoa K OD. B = μ₁α
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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