A solenoid long is wound uniformly over a soft-iron core of relative permeability
PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism
Problem
A solenoid 40cm long is wound uniformly over a soft-iron core of relative permeability 500. The winding has 2000 turns and carries a current of 0.20A.
(a) Calculate the magnitude of the magnetic field inside the core.
(b) Determine the magnetic energy density stored in the core.