1.P=UI=220V*4A=880W
Q=UIt=Pt=880W*1s=880J
一个电炉接在照明电路上,通过的电流是4A,则它的功率是多少?它在一秒内可放出的热量是多少?
一个电炉接在照明电路上,通过的电流是4A,则它的功率是多少?它在一秒内可放出的热量是多少?
物理人气:511 ℃时间:2019-10-17 05:12:45
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