Section 12.1: Magnetic Circuits
Provides a channel for magnetic fields (enables redirection and control of the location of magnetic fields)
f = Flux (captures totality of magnetic field) in Wb.
B = Flux density (per unit area) in Tesla (1 T. = 1 Wb./m2)
F = NI = Magnetomotive force (mmf) in Ampere-turns (AT)