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电路中开关的断开与闭合,滑动变阻器滑片的移动,会带来电路连接方式、电阻工作状态、通过电阻的电流、电阻两端的电压和电路消耗电功率的变化,这类电路被称作动态电路。中考对动态电路的综合计算考查有以下三个方面:一、由于开关的断开与闭合引起的变化;二、由于滑动变阻器的滑片移动引起的变化;三、开关断开与闭合结合滑片移动引起电路中物理量变化。一般来说,动态电路最终都可以简化成一个简单
Circuit in the switch off and closed, sliding rheostat vane movement, will bring the circuit connection, the resistance of the working state, through the resistance of the current resistance across the voltage and circuit power consumption changes, this type of circuit is called dynamic Circuit. The test of the dynamic circuit in the comprehensive calculation test has the following three aspects: First, due to the switch off and closed caused by changes; Second, due to sliding rheostat vane movement caused by changes; Third, the switch off and closed with the vane Movement caused by physical changes in the circuit. In general, dynamic circuits can eventually be simplified to a simple one