(II) An iron-core solenoid is 38 cm long and 1.8 cm
Chapter , Problem 50(choose chapter or problem)
(II) An iron-core solenoid is 38 cm long and 1.8 cm indiameter, and has 640 turns of wire. The magnetic fieldinside the solenoid is 2.2 T when 48 A flows in the wire.What is the permeability /jl at this high field strength?
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