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phy a.c. circuit - Yahoo!知識+
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日期：2026-04-26
99 Q20each of the following three students states a conclusion after learning the formula P=IV, P=I^2 R and P=V^2 /R in electricity.which of the these conclusions is/are correct?1. the power dissipated by any electric appliance can be calculated fromP=IV2...看更多
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