Sara1993
07-11-2011, 09:51 PM
A student needs to make a solenoid that produces 1.77 T at its center. He will wrap a wire around a solid cylinder of iron with a relative permeability (μ/μo) of 1400, a length of 14.7 cm, and a radius of 1.92 cm. If the wire can carry a maximum current of 1.27 A, how many turns of wire are needed along the entire cylinder to produce the desired B field?