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弄錯了,毫安培是電流的組織,瓦是功率的組織,不存在換算關係, 不安:瓦=伏特*安培
這兩個不同的物理組織,毫安培(mA)是描述電流的大小,而瓦(W)是描述用電器功率的組織.至於毫安培與瓦的聯系,要有電壓或電阻才能求出功率瓦(W).
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