TheEvenfall
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Hello there, I'm not sure if my solution is correct for \hat{I}_{C}
In the given circuit, calculate the current in each circuit element given that V = V_{o}sin(ωt)
R, L and C are given.
http://imgur.com/yO3flg8
Z = R + jX (j^{2} = -1)
X_{L} = jωL
X_{C} = \frac{-j}{ωC}
\hat{V} = V_{o}e^{jωt}
\hat{I} = I_{o}e^{j(ωt-ø)}
I_{o} = \frac{V_{}}{|Z|}
tan(ø) = \frac{\Im(Z)}{\Re(Z)}
First for the impedance, 1/Z_{XL} = 1/X_{L} + 1/X_{C}
Z_{XL} = j\frac{ωL}{1- ω^{2}CL}
Z = R + Z_{XL} = R + j\frac{ωL}{1- ω^{2}CL}
The current phasor in the resistor R: \hat{I_{R}}= \hat{I}= \hat{I_{C}} + \hat{I_{L}}
\hat{V_{C}} = \hat{V} - \hat{V_{R}}
\hat{I_{C}} = (\hat{V} - \hat{V_{R}} )/X_{C}
\hat{I_{C}} = (V_{o}e^{jωt} - I_{o}e^{j(ωt-ø)})(jωc) = V_{o}ωCe^{jwt}(1-\frac{R}{|Z|}e^{-jø})(j)
\hat{I_{C}} = V_{o}ωCe^{j(ωt+\pi/2)}(1-\frac{R}{|Z|}e^{-jø}) ø and |Z| are known.
AndI_{L} can be found the same way.
I'm not entirely sure my solution is correct. Also, since I_{R} is always in phase with V, does that mean that ø is 0? If so, then tan(ø) is also 0 but that would mean that either ω or L are 0...
Note: sorry if it seems slobby and for the skipped steps, my exam is in less than 3 hours and I'm really nervous and running out of time.
Homework Statement
In the given circuit, calculate the current in each circuit element given that V = V_{o}sin(ωt)
R, L and C are given.
http://imgur.com/yO3flg8
Homework Equations
Z = R + jX (j^{2} = -1)
X_{L} = jωL
X_{C} = \frac{-j}{ωC}
\hat{V} = V_{o}e^{jωt}
\hat{I} = I_{o}e^{j(ωt-ø)}
I_{o} = \frac{V_{}}{|Z|}
tan(ø) = \frac{\Im(Z)}{\Re(Z)}
The Attempt at a Solution
First for the impedance, 1/Z_{XL} = 1/X_{L} + 1/X_{C}
Z_{XL} = j\frac{ωL}{1- ω^{2}CL}
Z = R + Z_{XL} = R + j\frac{ωL}{1- ω^{2}CL}
The current phasor in the resistor R: \hat{I_{R}}= \hat{I}= \hat{I_{C}} + \hat{I_{L}}
\hat{V_{C}} = \hat{V} - \hat{V_{R}}
\hat{I_{C}} = (\hat{V} - \hat{V_{R}} )/X_{C}
\hat{I_{C}} = (V_{o}e^{jωt} - I_{o}e^{j(ωt-ø)})(jωc) = V_{o}ωCe^{jwt}(1-\frac{R}{|Z|}e^{-jø})(j)
\hat{I_{C}} = V_{o}ωCe^{j(ωt+\pi/2)}(1-\frac{R}{|Z|}e^{-jø}) ø and |Z| are known.
AndI_{L} can be found the same way.
I'm not entirely sure my solution is correct. Also, since I_{R} is always in phase with V, does that mean that ø is 0? If so, then tan(ø) is also 0 but that would mean that either ω or L are 0...
Note: sorry if it seems slobby and for the skipped steps, my exam is in less than 3 hours and I'm really nervous and running out of time.
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