The complete response=the natural response+forced response

上海交通大学：《电力系统自动化》课程教学资源（教学大纲，B）

The complete response of any RC circuit may also be obtained as the sum of the natural and the forced response

The series combination of a resistor and capacitor has a greater practical importance than does the combination of a resistor and an inductor

We define the unit-step forcing function as a function which is zero for all values of argument which are less than zero and which is unity(1) for all positive values of its argument

The inductance which is equivalent to several inductance connected in series is simply the sum of the series inductance

The displacement current flowing internally between the capacitor plates is exactly equal to the conduction current flowing in the capacitor leads

Let=R3 and The result we have found for two /R =k, we have inputs may be extended to any v2=-k(v1+3) number of inputs

UB =A(DA-UB) =cons tant The inverting OP-AMP circuit

Let us first define a linear element as passive element that has a linear voltage-current relationship