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when current flow from which directions,the galvanometer is positve and negative?
2007-03-26 15:00:19 · 1 個解答 · 發問者 2003 2 in 科學 ➔ 其他：科學
當電流 (傳統電流方向) 流入檢流計 (galvanometer) 的正極，讀數便是正數。
2007-03-26 17:39:29 · answer #1 · answered by Anthony 2 · 0⤊ 0⤋