問題詳情
請閱讀下列敘述後，回答51～52題
老師將「2 個電壓均為 1.5 V 的電池串聯」，利用導線連接電阻值為 100Ω的電阻器及開關，如圖(二十五)所示。另外附有已連接兩條導線且電阻值為50Ω 的電阻器，如圖(二十六)所示。
51. 若導線、開關的電阻及電池的內電阻均很小忽略不計，按下開關接通電流後，持續 10 秒，且通電期間電池的電壓保持不變，在這段期間 100Ω 的電阻器消耗多少電能？
(A) 0.225 J
(B) 0.9 J
(C) 22.5 J
(D) 90 J
參考答案
無參考答案
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