关于焦耳定律的疑问书上说焦耳定律是焦耳实验得来的,而它又说焦耳定律的推导是:W=UIt,又因为U=IR,所以为Q=I^2Rt,所以焦耳定律是由欧姆定律推导来的.可是在非纯电阻电路时,书上说计算热量
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![关于焦耳定律的疑问书上说焦耳定律是焦耳实验得来的,而它又说焦耳定律的推导是:W=UIt,又因为U=IR,所以为Q=I^2Rt,所以焦耳定律是由欧姆定律推导来的.可是在非纯电阻电路时,书上说计算热量](/uploads/image/z/1422064-64-4.jpg?t=%E5%85%B3%E4%BA%8E%E7%84%A6%E8%80%B3%E5%AE%9A%E5%BE%8B%E7%9A%84%E7%96%91%E9%97%AE%E4%B9%A6%E4%B8%8A%E8%AF%B4%E7%84%A6%E8%80%B3%E5%AE%9A%E5%BE%8B%E6%98%AF%E7%84%A6%E8%80%B3%E5%AE%9E%E9%AA%8C%E5%BE%97%E6%9D%A5%E7%9A%84%2C%E8%80%8C%E5%AE%83%E5%8F%88%E8%AF%B4%E7%84%A6%E8%80%B3%E5%AE%9A%E5%BE%8B%E7%9A%84%E6%8E%A8%E5%AF%BC%E6%98%AF%EF%BC%9AW%3DUIt%2C%E5%8F%88%E5%9B%A0%E4%B8%BAU%3DIR%2C%E6%89%80%E4%BB%A5%E4%B8%BAQ%3DI%5E2Rt%2C%E6%89%80%E4%BB%A5%E7%84%A6%E8%80%B3%E5%AE%9A%E5%BE%8B%E6%98%AF%E7%94%B1%E6%AC%A7%E5%A7%86%E5%AE%9A%E5%BE%8B%E6%8E%A8%E5%AF%BC%E6%9D%A5%E7%9A%84.%E5%8F%AF%E6%98%AF%E5%9C%A8%E9%9D%9E%E7%BA%AF%E7%94%B5%E9%98%BB%E7%94%B5%E8%B7%AF%E6%97%B6%2C%E4%B9%A6%E4%B8%8A%E8%AF%B4%E8%AE%A1%E7%AE%97%E7%83%AD%E9%87%8F)
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