(II) An iron-core solenoid is 38 cm long and 1.8 cm in
Chapter 20, Problem 62P(choose chapter or problem)
Problem 62P
(II) An iron-core solenoid is 38 cm long and 1.8 cm in diameter, and has 780 turns of wire. The magnetic field inside the solenoid is 2.2 T when 48 A flows in the wire. What is the permeability at this high field strength?
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