1.

In an electric machine F2 (rotor mmf) = 920 AT. F1 (stator emf) = 400 AT, alpha = 125° and the resultant air gap flux per pole is 0.107 Wb. Find out permeance per pole.Note: AT (Ampere Turn) is a unit.

A. 1.408 × 10-4 Wb/AT
B. 8.408 × 10-4 Wb/AT
C. 2.480 × 10-4 Wb/AT
D. 2.408 × 10-4 Wb/AT
Answer» B. 8.408 × 10-4 Wb/AT


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