A long vertical wire carries an unknown current. Coaxial with the wire is a long, thin, cylindrical
Question:
A long vertical wire carries an unknown current. Coaxial with the wire is a long, thin, cylindrical conducting surface that carries a current of 30 mA upward. The cylindrical surface has a radius of 3.0 mm. If the magnitude of the magnetic field at a point 5.0 mm from the wire is 1.0μT, what are the
(a) Size and
(b) Direction of the current z in the wire?
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a With cylindrical symmetry we have external to the ...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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