Recent content by berry1991

yes, but the question ask us to use 2nd order to solve it. Do we need to take in account for the dependent source? we convert it to 80*0.25=20V

Homework Statement Find v(t) for all t>0. Use second order method. Homework Equations The Attempt at a Solution Before the switch is closed: solving for i: -80+160i+80i+80i=0 i=0.25A KCL: From node v(t): [C dv(t)/dt] + i(t) + [V(t)/4] + [(v(t)-80i)/80]+[(v(t)-80)/160] = 0...

Now everything is clear to me now. thanks for your cooperation.

So in other words, after an amount of time(that is t=infinite) the current in the inductor will be zero due to the resistor dissipate the energy being stored in the inductor till 0?

So the current before and after the switch is closed: I(0-) = I(0+)=I(0), but not equal to I(∞) Is this correct? Another question: The following attachment is the circuit diagram: The answer given for the inductor current[I(∞)] = 0A From what that I understand, as time=∞,the...

With the statement of: "The circuit is at steady state before the switch closes" Does this means when t<0, the inductor is at steady state and it is short circuit. Am I correct? Then when t>0, the switch is closed and the inductor is also in a steady state? When t=∞, the inductor is...