問題詳情

58. A solenoid with 200 turns of copper wires is operated by a 1000 Vpower supply and must be 25 cm long. What is the magnitude ofmagnetic field that is created in the solenoid? (The resistance of Cuwire is 0.2 Ω and the permeability

T⋅m/A)


(A) 5.03 T
(B) 3.21 T
(C) 7.84 T
(D) 4.58 T
(E) 4.36 T

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增

用户評論

【面試倒楣鬼-22幸運上後西】評論

I = 1000/0.2 = 5000☆, ☆ = (20........