How Do You Find Frequency in an RC Circuit?

[argent]

RC Circuit, Finding Frequency? [Solved]

Solved =]

Homework Statement

Homework Equations

Z = [ R² + (1/wC)² ]^1/2
where Z is impedance, w = (omega) = angular frequency

X_c = 1/(wC)

w = 2(pi)f

(tau) = RC
where (tau) is the time constant

The Attempt at a Solution

I'm more confused than anything. Like I'm not sure what the set up is.

Just looking at the problem itself, the first part seems to give different numbers. When in the first part R = 4857.1 Ohms, and then in the second part R = 3629.6 Ohms?

At first I was working under the assumption that Z = R, but that would result in 0=1/(wC)
Then I googled impedance of the capacitor and some sources say that that is X_c, the capacitive reactance. So I solved R = X_c = 1/(wC) got that f = 1/ [ RC2(pi) ] , but when I tried plugging it in, I still couldn't get the answer that they have.EDIT:
Nevermind. I just figured it out. Turns out I was right for the frequency equation. I just used the numbers given instead in the second part and completely ignored the first part, and got the answer.

Um, how do I delete a thread?

 

[phinds]

Glad you got it figured out