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Calculate flux density at the pole center (Bg₎ in Wb/m², from the following data:
no. of pole = 4
slot pitch = 43 mm
slot opening = 21 mm
gross length of core = 480 mm
pole arc = 180 mm
length of airgap = 6 mm
flux per pole = 0.056 Wb
no. of ventilation ducts = 8
width of each ventilating duct = 12 mm
carter's coefficient for slot = 0.42
carter's coefficient for ducts = 0.28
258
059
0.648
4145
258
Quick Summary: Practice and solve "Calculate flux density at the pole center (Bg) in Wb/m2, from the following data: no. of pole = 4 sl..." for Electrical - Electrical Materials. The correct answer is Option A: 258. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(c) **