Rlc Definition and 435 Threads

Homework Statement My book defines the equation for energy of an RLC circuit to be E = 1/2 L I^2 + 1/2 Q^2/C In series the Quality factor is (L/C)^1/2/R My question is will these equations hold for an RLC circuit that is parallel. I.E. the Resistor is in parallel with the Inductor which is...

[b]1. The switch in the circuit shown in Figure has been closed for a long time before t = 0 but opened at t = 0. Solve for i(t) for t ≥ 0. *Hereby I attached the circuit diagram for the question above. And this is where I got so far. (6ohm+6ohm)=12ohm alpha=R/2L = 4 Neper. But then I...

I need to find the resonant frequency of the circuit shown in the diagram. http://img216.imageshack.us/img216/1750/gdmn.jpg The loop has a value of 1H, the capacitor has a value of 0.2F and the resistor has a value of 10 ohm. My initial approach has been to try and find the total...

Homework Statement ^^I'm sort of lost as to how to approach this question. Should i just find the voltage at node A? Then at B? But what confuses me the most are these time values we need to take into account. So what would be the best way to approach this question? Thanks.

hi, i wanted a simple explanation of a series rlc circuit in a radio as i know the rlc circuit consists of resistor,inductor,capacitor i know the function of each of them but what i don't understand is how by combinig them we can make a radio tuner!? i searched many websites but i can't find a...

hello! I was in the lab doing the experiment of resonance frequency by plotting the graph of current vs frequency for a parallel RLC circuit. In this experiment i have also to find the Q factor and the bandwidth. The resonance frequency corresponds to the frequency with minimum intensity. Now...

Homework Statement a) WRUF broadcasts at 103.7 MHz, what is the wavelength associated? b) If you were to use an RLC circuit to tune to this radio station, what resonance frequency would you tune to? Homework Equations f(resonance)= 1/(2\pi\sqrt{LC}) The Attempt at a Solution a)...

I'm typing up all of my old homework assignments into notes and have forgotten quite a bit of things since I have learned them. My problem now is with a series/parallel RLC circuit. I have no problem with series or parallel, but this combined one is giving me difficulties. I am able to...

1. (See attachment) Q1 a, Determine I1,I2and I3 after 5 time constants b, when the switch is first closed ie t=0 c,when the switch re opens 2. I total=I1-(i1+I2) i=I[1-e --RL/L 3. i havnt practiced any circuits with resitance in series and parallel just looking for a way...

Homework Statement How do one calculate the power in time of RLC circuit in parallel combination running an AC current ? It has to be in terms of frequency (\omega = 2 \pi f ) Homework Equations \omega = 1/ \sqrt{LC} The Attempt at a Solution I started off with the omega but...

Homework Statement The Attempt at a Solution Ok, first part, no problem, second part (steady state), solved in another thread. Both are pretty tedious, but doable. However, I am quite stumped by the third part of this problem (V = V_o sin wt) . The second part of the problem...

Homework Statement A 10 μF capacitor and a 25 H inductor are connected in series with a 60 Hz source whose rms output is 112 V. Find the voltage drop across the inductor. Answer in units of V. Note: Sigfigs do not matter Homework Equations I = V/Z where Z is the impedence XL =...

1. if a impedance at 192 ,phase angle -75, resistor 49.7, wat missing in this circuit? A inductor or capacitor? Can it be a inductor?

Using the following o.d.e L\frac{d^2i}{dt^2}+R\frac{di}{dt}+\frac{1}{C}i=\frac{d}{dt}E(t) The following problem has several parts all of which I have solved except for the one below. L=1/20 R=5 C=4.10^{-4} \frac{dE}{dt}=200\cos100t Where L is an inductance in henries, R is a...

http://image.cramster.com/answer-board/image/501adeb46c35e1d66d704eb5d3c30ced.jpg 1) Determine: a. The value of i(0+) b. The value of v(0+) c. The value of i( ∞) d. The value of v( ∞) 2) For t > 0, determine: a...

Drawing graphs with errors using Matlab. I'm writing my first serious report, yay!, from the measurements we made with series RLC -circuit. I'm supposed to determine the values of the two coils we used as well as their self-inductanses. We had four different circuits: R, L1 and C in series...

Homework Statement An L-R-C series circuit is constructed using a 175{ \Omega} resistor, a 12.5 muF capacitor, and an 8.00-mH inductor, all connected across an ac source having a variable frequency and a voltage amplitude of 25.0 V. At the angular frequency in part A, find the potential...

i m trying to design RLC series circuit on Pspice and parctically showing Under , Over and , Critical response i have capacitor of 1uF an inductor of 150uH and resistor ( can choose any) but for these responses 10,40,20 ohms respectivly but the graph is not coming as it should be like it is...

This is more of a math question but i feel like i will get more help among Electrical Engineers. I successfully found the step response of an RC circuit in the time domain using Laplace Transforms. But i can't seem to figure out how to do it with an RLC transfer function. I have the following...

Homework Statement A RLC circuit has a resonance frequency of 6 KHz. When it is driven by a 8 KHz ac generator, it has an impedance of 1 k W. What are R, L and C in the circuit? Homework Equations The Attempt at a Solution the equation for the resonant frequency will be...

Homework Statement An alternating source drives a series RLC circuit with an emf amplitude of 6.00 V, at a phase angle of +30.0 degrees. When the potential difference across the capacitor reaches its maximum positive value of +5.00 V, what is the potential difference across the inductor...

Homework Statement The figure below shows the time variation of the current through an electrical heater when it is plugged into a 240 V, 50 Hz outlet. 1) What is the peak voltage? 2) What is the rms value of the current drawn by the heater? 3) What is the resistance of the heater...

Given that R = 1 kOhms, L=100mH and C = 1uF, calculate the frequency at which the current in the circuit lags the supply voltage by 45deg. Show how the impedance of the circuit is given by Z = sqr root R2 + (wL - 1/wC)2 arctan [(wL - 1/wC) / R] I have not been given any information...

Hey all, I'm a new member, so nice to meet you all! Homework Statement I'm currently in the process for deriving the Transfer Function H(s) and H(jw) (w read as omega for angular frequency) for http://www.ebfreedom.com/fwajx/cDiag.jpg" I have taken several approaches but have not been...

Homework Statement It is in the attachment. NOTE: I supposed I did a little mistake when I drew the circuit with PSpice. The closed switch should look like .---->. instead of having that 45 angle. I don't know if it matters or not, so yea.. Homework Equations Rp = (R1 * R2)/ (R1 +...

[SOLVED] Finding RLC from Freq and Impediance (AC Ckt) Homework Statement 1. Determine the values of R, L and C in an AC circuit to satisfy the following criteria: (i) the impedance at resonance is 5 k Ohms (ii) the resonant frequency is 60 Hz (USA standard) (iii) the voltage lags the...

Homework Statement A 5 Micro-F Capacitor, a 65mH Inductor, and a 10 Ohm resistor are connected in series Find the resonant frequency of this circuit. Determine the peak current at resonance, if the peak voltage is 100V Homework Equations Fr = (1/2Pi) Square Root(1/LC) I don't know...

Homework Statement A 21.0 \mu F capacitor is charged by a 160.0-{\rm V} power supply, then disconnected from the power and connected in series with a 0.220-{\rm mH} inductor. Calculate the energy stored in the capacitor at time t = 0{\rm{ ms}} (the moment of connection with the inductor)...

Homework Statement Purcell 8.4: In the resonant circuit of the figure(I'll reproduce the image below) the dissipative element is a resistor R' connected in parallel, rather than in series, with the LC combination. Work out the equation analogous to Eq 2. (d^2V/dt^2 + (R/L)(dV/dt) + (1/LC)V = 0...

hey everybody!...sorry for the stupid question...Can you use Thevenin, Norton, superposition and Node analisys in RLC circuits?...if so...could you pass some examples circuits?...Thanks!

Homework Statement I'm having some problems solving this RLC circuit, if anyone could help. R = 2 ohms C = 2/3 F L = 1/2 H The top picture is when t < 0 The bottom picture is when t > 0 Find v_o(t) (notice V_0 is the defined +- voltage over the resistor)...

[SOLVED] Overdamped RLC circuit Homework Statement In a parallel RLC circuit determine i_R(t). R = 20 mohms L = 2mH C = 50 mF v(0+) = 0 (capacitor) i(0-) = 2mA (inductor)My question is what is i_R(0^+)? According to my final answer, it should be 0. However, went I graph it with PSPICE, it...

Homework Statement A series RLC circuit has a 0.19 mF capacitor, a 16 mH inductor, and a 10.0 resistor, and is connected to an ac source with amplitude 9.0 V and frequency 60 Hz. (a) Calculate the voltage amplitudes VL, VC, VR, and the phase angle phi . VL = V VC = V VR = V...

Given a series RLC Circuit driven by a generator, Kirchhoff's Loop Rule gives: V_{peak} cos \omega t - L\frac{di}{dt} - IR - \frac{Q}{C} = 0 - OR - V_{peak} cos \omega t = L\frac{d^{2}Q}{dt^{2}} + \frac{dQ}{dt}R + \frac{Q}{C} I have never done second order differential equations, so...

Homework Statement We have a series RLC circuit with x(t) as the voltage source. We are to find the frequency response function H(w) from the input x(t) to the output y(t)=Vc(t) - ie the voltage across the capacitor. Homework Equations The Attempt at a Solution My answer...

RLC Circuit problem. Please Help! Homework Statement In the figure, what is the current supplied by the emf when the frequency is very small? What is the current supplied by the emf when the frequency is very large? Homework EquationsI am not sure but: wo=1/sqrt(LC) Vr=IR Vl=IXl Vc=IXc

Homework Statement What is the current supplied by the emf when the frequency is very large and very small? ------------------------- | | | ------------------------ | | | |...

Homework Statement In the circuit below, find the resonant frequency (\omega_0) and Z_{IN}\left(\omega_0\right). http://img143.imageshack.us/img143/9845/problem1444dx4.jpg Homework Equations \omega_0\,=\,\frac{1}{\sqrt{LC}} The Attempt at a Solution The resonant frequency is easy to find...

I need some help deriving the quality factor in an rcl circuit Q=Lw(sub 0)/R. So far I know that Q=w(sub 0)/delta but my professor used this formula to continue the derivation delta w=R/L and I don't know where it comes from. Can anyone give me a hint?

Homework Statement I need to solve the following equation to get I = V/((R^2+(Xl-Xc)^2)^1/2). Homework Equations -I[(1/c - w^2L)sin(Φ)-Rwcos(Φ)]-wV=0 we know that tan(Φ) = (Xl-Xc)/R Xc = 1/wc Xl = wL The Attempt at a Solution I[(1/c - w^2 L)sin(Φ)-Rwcos(Φ)]=wV I[sin(Φ)/c -...

Do you only need L and C to be in series in order to have a RLC series circuit? (So where you put R doesn't matter right?).

Hi everyone, Srry to post a different homework question in your thread here, but tried to start a new topic/thread but for some reason, the system is not letting me. Here is my question: It's the last m/c question out of 30 that I am doing tonight, and I'm having a bit of trouble...

I've been working on this problem to review (see the attachments), and my circuit analysis skills are quite rusty. I've determined that the circuit should be underdamped, and it will have a step response. Based on this, I'm using the equation V0(t)=Vf+B1e^(αt)cos(ωdt)+B2e^(ω0t)sin(ωdt). As you...

I've been a lurker for a longtime (and recently made an account). That aside, I've just started my sophomore level classes in electrical engineering this year (in college obviously), and my instructor has asked us at the last minute to make a simple project involving an RLC network (so...

I have an RLC Circuit. I've changed the resistors 3 times to give me a case of overdamping, underdamping, and critical damping. In taking my data (this was a long long time ago) I apparently missed taking measurements of current. I'm trying to solve the three differential equations to make a...

I have an RLC Circuit. I've changed the resistors 3 times to give me a case of overdamping, underdamping, and critical damping. In taking my data (this was a long long time ago) I apparently missed taking measurements of current. I'm trying to solve the three differential equations to make a...

Please help me to solve this RLC circuit problem. I am completely confused.If you give me the direct answer it would be much appreciated. For the series RLC circuit in Figure, find the input/output difference equation for 1. y(t)=v_{R} 2. Y(t)=i(t) 3. y(t)=v_{L} 4. y(t)=v_{C} I...

Hello, I've been reviewing some material from my undergraduate studies. In the book "Signals and Systems" by Haykin in the first chapter he gives an example of a voltage source with the value of Vo*delta(t) applied to a series RLC circuit. Vo is some arbitrary constant and delta(t) is the...

I need some help setting up the DE for this system. I have a voltage source pumping at V_0cos(wt) Connected to a capacitor, inductor and resistor all three in parrellel. I am guessing then, that the voltage drop among all the parts are equal. V_0 cos(wt) = \frac{Q}{C} = L \ddot{Q} =...

hi... how can i get A cos (omega t) + B sin (omega t) into this form: C cos (omega t + theta) ? does it equal to A+B cos (omega t - 90) ? i know it has to do with the underdamped response of an RLC circuit. i was looking into phasors as well. any help would be greatly...