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滑动变阻器是根据电阻定律制成的器件,它通过改变接入电路的导线长度来改变电阻、进而改变电压与电流的.分压式控制电路是滑动变阻器接入电路的一种典型方式.本文从两个方面具体分析与讨论分压式控制电路中滑动变阻器如何调节电路的电压、以及分压控制电路中选择什么样的滑动变
Slide rheostat is made according to the law of resistance of the device, which by changing the length of the access circuit to change the resistance of the wire, thereby changing the voltage and current.Voltage control circuit is a sliding rheostat access circuit is a typical way. Two aspects of specific analysis and discussion of partial pressure control circuit in the rheostat how to adjust the voltage of the circuit, and the partial pressure control circuit to choose what kind of sliding change