Circuit analysis, determing impendance.

1. Feb 20, 2009

Kruum

1. The problem statement, all variables and given/known data

I need to find the impedance of the following circuit:

2. Relevant equations

$$\frac{1}{Z_eq}=\frac{1}{Z_1}+\frac{1}{Z_2}$$
$$Z=R$$
$$Z=\frac{1}{i \omega C}$$

3. The attempt at a solution

This should be really simple, but I seem to have some troubles. So: $$\frac{1}{R}+i \omega C=\frac{1+i \omega CR}{R}$$ and then $$Z_eq=\frac{R}{1+i \omega CR}$$. But the answer seems to be wrong.

2. Feb 20, 2009

mplayer

That's the answer I got when I calculated it. I tried it with test values it was consistent. Why do you think it's wrong?

3. Feb 21, 2009

Kruum

As I said this should be really simple, I just get the wrong answer for the calculation, that this impedance is part of. Maybe it helps if I post the whole problem?

Edit: I found out my Laplace tranformation for the circuit was wrong. I got the right answer now. Thank you.

Last edited: Feb 21, 2009
4. Feb 21, 2009

mplayer

Sorry I couldn't help more. Glad you figured it out

5. Feb 22, 2009

Kruum

You did plenty enough. I was sure the problem was there, but your confirmation made go trough every step. Thank for the help!