交流負載是否可以換成等校的電阻呢 - 居家修繕
By Hedy
at 2011-04-10T22:54
at 2011-04-10T22:54
Table of Contents
請問一下,
我的裝置上有一個功率200瓦,交流電壓220V的元件(燈泡),
我可以換上一個等校電阻來取代這顆燈泡嗎
如果可以的話, 我目前算的電阻值 P=V^2/R->R=V^2/P=(220)^2/200=242(歐姆),
I=V/R=220/242=0.909(安培),
我是否應該也需要裝一個1A的保險絲
謝謝
--
我的裝置上有一個功率200瓦,交流電壓220V的元件(燈泡),
我可以換上一個等校電阻來取代這顆燈泡嗎
如果可以的話, 我目前算的電阻值 P=V^2/R->R=V^2/P=(220)^2/200=242(歐姆),
I=V/R=220/242=0.909(安培),
我是否應該也需要裝一個1A的保險絲
謝謝
--
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居家修繕
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