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在直流电路中,当部分电路变化时,电容器充电和放电,形成充电电流或放电电流,电容器的带电量、两极板间电压、电场强度、电场的能量、两级板间的电荷的运动状态发生变化,此类问题是中学物理教学的重点和难点,本文就含有电容器的电路进行归类分析。一、分析含有电容器的直流电路1.电路达到稳定状态,电容器所在支路可看做是断开的,简化电路时可将电容器去掉分析,若要求电容器所带电量时,电容器两端电压等于与其并联那部分电路两端的
In the DC circuit, when part of the circuit changes, the capacitor charges and discharges to form a charging current or discharging current, the charged capacity of the capacitor, the voltage between the two electrodes, the electric field strength, the energy of the electric field, and the movement of the charges between the two plates occur Change, such problems are the focus of secondary school physics teaching and difficult, this article contains the capacitor circuit classification analysis. First, the analysis of the capacitor containing DC circuit 1. The circuit reaches a steady state, where the capacitor branch can be seen as disconnected, simplify the circuit can be removed when the capacitor analysis, if required capacitor capacity, the voltage across the capacitor is equal to its That part of the circuit in both ends of the parallel