做功的过程总对应着能量的转化从能的转化和守恒的角度来看,做电功的过程是电能转化为其他形式能的过程,并且消耗多少电能,就能获得多少其他形式的能结合欧姆定律导出W=I2Rt、W=UR2t这两个公式只适用于电能完全转化为内能而没有电能转化为其他形式能的用电器(即“纯粹电阻”电 The process of doing work always corresponds to the transformation of energy. From the perspective of energy conversion and conservation, the process of making electrical work is the process of converting electrical energy into other forms of energy, and how much energy is consumed, how many other forms of combined ohms can be obtained. The two formulas derived by the law, W = I2Rt, W = UR2t, apply only to electrical appliances in which electrical energy is completely converted to internal energy and no electrical energy is converted to other forms of energy (that is, “pure resistor” electricity.