Consider a solenoid of length , and radius a containing N
Chapter 30, Problem 69(choose chapter or problem)
Consider a solenoid of length , and radius a containing N closely spaced turns and carrying a steady current I. (a) In terms of these parameters, find the magnetic field at a point along the axis as a function of position x from the end of the solenoid. (b) Show that as , becomes very long, B approaches m0NI/2, at each end of the solenoid.
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