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1840年12月,焦耳在英国皇家学会上宣读了关于电流生热的论文,提出了电流通过导体产生热量的定律.不久,楞次也独立地发现了同样的定律,之后被称之为焦耳-楞次定律.因为“焦耳定律”实验在初中物理教学中占据着极其重要的地位,所以
In December 1840 Joule read a paper on the current heat generation at the Royal Society and proposed the law of the current flow through the conductor. Soon Lenz also found the same law independently and was later called Joule- Lenz’s law. Because “Joule’s law” experiment occupies an extremely important position in junior high school physics teaching, so