問題詳情

6. In the circuit, if the switch S is closed for a long time, and is then opened. Just after the switch is opened, what is the potential difference across the inductor L?

 
(A) ε
(B)


(C)


(D)


(E)

參考答案

答案:C

統計:A:0,B:0,C:0,D:0,E:0

難度:計算中