知道额定功率和额定电压求额定电流和电阻
额定功率为200W,额定电压为220V,求额定电流和电阻
人气:425 ℃ 时间:2019-08-18 15:26:53
解答
楼上是怎么算的?有点错误吧!
额定电流=额定功率/额定电压
即200/220=0.9(安培)
电阻=额定电压平方/额定功率
即220*220/200=242(欧姆)
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