Engineering I can't determine the capacitive and inductive resistance of the circuit

[Michael_0039]

Homework Statement

Specify the currents and the voltage drop of the elements. The circuit is working for a sufficiently long time.

Relevant Equations

nil

Hi,

I'm trying to solve this but it becomes difficult. I'm using KCL and I repalce ZL = j0,1ω (Ω) , ZC=... etc.
Finding 3 equations with 3 unknown variables (plus the ω).
And now is the time for Cramer's rule.

I'm not sure if I should move on.

What do you say ? I'm on track ?

Thanks.
..

 

[phinds]

What does the circuit look like when it "is working for a sufficiently long time ". Draw that to show us that you first understand the implications before you try to go further because if you don't have that right, you'll just get lost and if you do have it right you'll see that the circuit is fairly straightforward.

 

[Michael_0039]

What does the circuit look like when it "is working for a sufficiently long time "...

I'm not sure for that, it is a note.

 

[Michael_0039]

I think that the key is this note. After a "sufficiently long time" the inductor act like a wire and the current through the capacitor is zero. (Μisleading)

 

[phinds]

I think that the key is this note. After a "sufficiently long time" the inductor act like a wire and the current through the capacitor is zero. (Μisleading)

Exactly. So draw that circuit.

 

[phinds]

And by the way, if you don't completely understand WHY the note says what it says, you should worry about that first. Understanding that is WAY more important that just being able to solve this particular problem.

 

[Michael_0039]

piece of cake

 

[anorlunda]

And by the way, if you don't completely understand WHY the note says what it says, you should worry about that first. Understanding that is WAY more important that just being able to solve this particular problem.

So @Michael_0039 , did you take that hint? Why is that important? What are the equations for a L and for a C?

 

[Michael_0039]

For constant I, V=0

For constant V, I=0