发布时间:2025-01-24 13:46:12
解:根据R=U平方/P,得R=48400/2200W=22欧;实际电压U=IR=8A*22欧=176V,则实际功率为P=IU=8A*176V=1408W=1.408KW. 答:电炉的电阻为22欧,此时的实际功率是1.408KW
销售人员如何才能抓住客户的心理把自己的产品成功推销给所需要的客户
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