問題詳情

40.連接電路如圖所示,若導線無電阻,則所用電池及燈泡L兩端電壓

各為何?


(A)

=6V,

=2V
(B)

=4V,

=2V
(C)

=2V,

=2V
(D)

=8V,

=2V

參考答案