A certain magnetic circuit may be regarded as consisting of three parts, A, B and C in series,each one of which has a uniform cross-sectional area. Part A has a length of 300 mm and a cross-sectional area of 450 mm². Part B has a length of 120 mm and a cross-sectional area of 300 mm².Part C is an airgap 1.0 mm in length and of cross-sectional area 350 mm². The flux in the airgapis 0.35 mWb. Neglect magnetic leakage and fringing. The magnetic characteristic for parts A andB is given by:H (A/m)40056080012801800B (T)0.70.851.01.151.25Calculate:i. The reluctance of each part, that is, of Part A, Part B, and Part Cii.The total reluctance of the magnetic circuit.iii.The total m.m.f.

i. Reluctance of Each Part Part A: 1. Flux Density (B):BA=AAΦ=450×10−6 m20.35×10−3 Wb=0.777…

Answered: A certain magnetic circuit may be…

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

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