1.

A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ϕ=800microWb has a coil of 200 turns wound around it. Calculate the magnetising current.#

A. 6.7A
B. 7.7A
C. 7.6
D. 6.1A
Answer» B. 7.7A


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