焦耳定律

běn wén duì jiào cái zhōng jiāo ěr dìng lǜ yǎn shì shí yàn zhuāng zhì jìn xíng le gǎi jìn

本文对教材中焦耳定律演示实验装置进行了改进。

In this paper, the experimental device for demonstrating Joule's law in teaching materials is improved.