切換國家、閱讀語言或顯示單位。法規與考照資訊永遠只使用你選擇的工作管轄地區。 歐姆定律以 V=IR 表達電壓、電流與電阻的基礎關係；本內容只用於概念學習。 電壓、電流與電阻之間的關係可以用同一個基礎公式理解；這是概念學習，不是帶電作業指示。 學習範例可切換顯示單位，但單位呈現不代表安大略省的材料、導線規格、施工規則或執業資格要求彼此等價。 不會；顯示單位可切換，但公式與法規邊界不隨顯示方式改變。 這不是帶電作業或現場施工指示。 歐姆定律描述電壓、電流與電阻之間的關係。選擇你的工作情境
歐姆定律的核心
歐姆定律的核心
加拿大安大略省學習情境
FAQ
單位切換會改變歐姆定律嗎？
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