問題詳情
52. The current in an inductor (L = 40 mH) is described by 
with I in ampers and t in seconds. What is themagnitude of the emf induced in the inductor at t = 3.0 s?
(A) 2.0 V
(B) 0.080 V
(C) 50 V
(D) 0 V
(E) 4.0 V
參考答案
無參考答案
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