問題詳情
30.如果在實驗室找不到燈泡，也可能可以藉由通電後觀察何種現象以得知此溶液是否具導電性？
(A)溶液量是否越來越多
(B)觀察兩電極棒間的距離是否越來越近
(C)電極棒附近是否有氣泡產生
(D)兩電極棒是否漸漸變為透明。
(A)溶液量是否越來越多
(B)觀察兩電極棒間的距離是否越來越近
(C)電極棒附近是否有氣泡產生
(D)兩電極棒是否漸漸變為透明。
參考答案
無參考答案
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