对“焦耳定律综合演示仪”的改进

The Improvement of The “Joule ′s Law Synthetic Demonstration Instrument”

就“焦耳定律综合演示仪”的原仪器装置的不足之处提出了切实可行的改进方法，给出一种新的焦耳定律演示仪装置，它的结构及操作简单，效果更明显．

This paper offers the practicable improvement in the shortcoming on the original apparatus of the “Joule ′s Law synthetic demonstration instrument”.Here a new Joule ′s Law demonstration instrument is given.Although it is simple in the structure and easy in operation,its effect is more obvious.