# Complex Impedance

1. Jul 22, 2010

### zcus05

1. The problem statement, all variables and given/known data
In a circuit consisting of a capacitor (Voltage across is 3.2V) and a 47$$\Omega$$resistor (Voltage across is 4.65V), with a current of 0.0989A and a phase difference between the two voltages being 90', what is the complex impedance for the circuit?

Unsure of how to work this out, the stated values are ones I have worked out and may not necessarily be useful to this problem.

2. Relevant equations

3. The attempt at a solution
Wouldn't know where to start

2. Jul 22, 2010

### xcvxcvvc

$$Z = R +jX=R-j\frac{|V_c|}{|I_c|}$$

3. Jul 22, 2010

### zcus05

Thanks a ton, I think I get it now, had to brush up on a bit of my old algebra notes.

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook