Question: What is the formula for the flux density for the PM motors?
Options
A : flux density = residual flux density / 1 + (1.11/permeance coefficient)
B : flux density = residual flux density * 1 + (1.11/permeance coefficient)
C : flux density = residual flux density / 1 + (1.11*permeance coefficient)
D : flux density = residual flux density * 1 + (1.11*permeance coefficient)
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