The current density J inside a long, solid, cylindrical wire of radius a = 3.1 mm is
Question:
The current density J inside a long, solid, cylindrical wire of radius a = 3.1 mm is in the direction of the central axis, and its magnitude varies linearly with radial distance r from the axis according to J = J0r/a, where J0 = 310 A/m2. Find the magnitude of the magnetic field at
(a) r = 0,
(b) r = a/2 and
(c) r = a.
Step by Step Answer:
Forra Molex Mo J r 2rdr Mo J 7 0 enc 2r...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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