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    Ohm.这是国际单位制量度电阻值的单位。它是在一個無電動勢的導體上，在兩 點間施压 1 Volt 電壓，令在導體上產生 1 Ampere 電流時，此時兩點間的電阻是1歐姆。 Ohm = V/A ...^

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