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RC Circuit, Finding Frequency? [Solved]
Solved =]
Z = [ R2 + (1/wC)2 ]1/2
where Z is impedance, w = (omega) = angular frequency
Xc = 1/(wC)
w = 2(pi)f
(tau) = RC
where (tau) is the time constant
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 Xc, the capacitive reactance. So I solved R = Xc = 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?
Solved =]
Homework Statement
Homework Equations
Z = [ R2 + (1/wC)2 ]1/2
where Z is impedance, w = (omega) = angular frequency
Xc = 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 Xc, the capacitive reactance. So I solved R = Xc = 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?
Last edited: