论文部分内容阅读
1.滑动变阻器的使用原理是通过移动滑片改变连入电路中电阻丝的____,来改变连入电路中的____.其作用是通过改变连入电路中的电阻,来控制电路中——的变化.2.如图1所示是学生
1. The use of sliding rheostat is to change the circuit connected to the resistance wire by moving the vane to change ____ connected to the circuit ____ its role is by changing the resistance connected to the circuit to control the circuit - - Changes .2. As shown in Figure 1 is a student