变阻器在控制电路中的应用

The Application of Rheostat in Controlled Circuit

以电路控制实验为例,说明变阻器在实验中控制电路电流和电压的改变,并通过特性曲线、调节范围、细调程度来表征控制电路的性能和特点。

With the circuit control experiment as the example,the paper elaborates that rheostat can monitor the change of electric current and pressure in the controlled circuit and manifest the circuit's qualities and features through special curve,regulating range and extent.