38. 如下圖所示電路,在開關 S1閉合前電感無儲存能量,若 S1在時間 t = 0 秒時閉合,電感電流
,則下列敘述何者正確?
(A) E1 =10 V、R1 = 2 Ω、L1 =100 mH
(B) E1 =10 V、R1 = 4 Ω、L1 = 20 mH
(C) E1 = 20V、R1 = 4Ω、L1 =100 mH
(D) E1 = 40 V、 R1 = 4 Ω、L1 =100 mH
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統計: A(18), B(22), C(199), D(8), E(0) #3040950
統計: A(18), B(22), C(199), D(8), E(0) #3040950