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electrical engineering magnetism and electromagnetism
1. What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m?
(A): 1 At/Wb
(B): 11 At/Wb
(C): 111 At/Wb
(D): 1111 At/Wb
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