問題詳情

33. A toroidal inductor with an inductance of 20 mH has avolume of 0.02 m3 . If the average energy density of thetoroidal coil is 50.0 J/m3. which of the following valuesis closest to the current (in amperes) through theinductor?


(A)0.2
(B)1.0
(C)2.0
(D)10.0
(E)20.0

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增