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在高中物理学中,当学到闭合电路欧姆定律时,对学生来说会有各种各样的困难。例如对电动势的概念往往处于模糊的状态,分不清内压和路端电压分别是指哪两点间的电压。如果这些问题弄不清楚,虽能通过记忆公式来计算各种题目,实质上却没有真正掌握闭合电路欧姆定律。现特地设计了实验装置,想通过对闭合电路欧姆定律演示实验的探究,把上述问题讲清楚。通过可调内阻电池可研究闭合电路欧姆定律。用配套电表测定电池的电动势和内阻,还可研究电源的输出功率等。该实验器的创新在
In high school physics, when you learn the Ohm’s law of closed circuits, you have a variety of difficulties for students. For example, the concept of electromotive force is often in a fuzzy state, can not tell the internal pressure and road voltage refers to the voltage between the two points. If these questions are not clear, though it is possible to calculate various topics by memorizing the formula, there is virtually no real knowledge of Ohm’s law of closed circuits. Specially designed experimental device, would like to open the circuit Ohm’s law demonstration experiment to explore the above issues clearly. The closed circuit Ohm’s law can be studied with adjustable internal resistance cells. With the meter to measure the battery electromotive force and resistance, but also study the power output power. The experimental innovation