A long cylindrical wire has a radius equal to 2.2 cm and carries
a current of 75 A uniformly distributed over its cross-sectional
area. Find the magnetic energy per unit length within the wire.
(Use the following as necessary: π and
μ0.)
U'm = mJ/m
A long cylindrical wire has a radius equal to 2.2 cm and carries a current of...
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please make sure you have the right answer. A toroid that has a mean radius equal to 28.5 cm and circular loops with radii equal to 1.50 cm is wound with a superconducting wire. The wire has a length equal to 1000 m and carries a current of 360 A. (a) What is the number of turns of the wire? ...... (b) What is the magnetic field strength and magnetic energy density at the mean radius? ......... T ....... MJ/m3...