认识世界的目的,是为了创造世界,运用物理知识解决实际问题。培养学生创造性的能力的方法之一,启发学生一题多解,它又是巩固知识,深化知识的重要手段。题目一:有一个电源电压为12伏,另有一个滑动变阻器,最大值为64欧,还有一个“6V,3W”灯泡,画出该灯泡正常发光的电路图。 The purpose of understanding the world is to create the world and use physical knowledge to solve practical problems. One of the methods of cultivating students’ creative abilities is to inspire students to solve multiple problems. It is also an important means to consolidate knowledge and deepen knowledge. Topic 1: There is a power supply voltage of 12 volts, and a sliding rheostat with a maximum of 64 ohms. There is also a “6V, 3W” light bulb. Draw a circuit diagram for the normal light emission of the light bulb.