問題詳情

36. A Mashlight uses two 1.5-V batteries. If the current passing through the lightbulb is 0.5 A. how muchenergy is consumed by the lightbulb in half an hour?
(A)45J
(B)90J
(C)900J
(D) 2700 J
(E) 10800 J

參考答案

答案:D
難度:計算中-1
書單:沒有書單,新增