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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 | |