Nodal analysis Definition and 176 Threads

can someone confirm i did this rite: Homework Statement Find I(x) Homework Equations see the next part please The Attempt at a Solution using nodal analysis method i have 2 nodes and these are the equations i got for each, after simplification: V1: (5/2)V1-V2=21 V2: (5/2)V2-V1=10.5 Using...

Homework Statement http://img541.imageshack.us/img541/5039/homeworkprobsg27.jpg Find the value of the voltage Vm Homework Equations V = IR, KVL, KCL, mesh equations, nodal equations The Attempt at a Solution...

Homework Statement Using Nodal analysis, determine the current through each resistor, for this circuit. Could you please show the KCL working out.I need the answers Please help me i am helpless with nodal analysis consist of a current source.Thanks in advance :) !.please help me. r1=120...

Having trouble with some review circuits using nodal analysis :( Homework Statement I'm trying to find node voltages for v1, v2, and v3. I = 3.1A Homework Equations V=IR The Attempt at a Solution My method of going about and solving this was fairly straight forward I thought...

Homework Statement The Attempt at a Solution According to the similar problem Node X: I1=(22-Vx)/66 I2=(66-Vx)/44 Il=Vx/264 I3=I1+I2+Il Node Y: I4=Vy/240 I5=6 I4=I3+I5 After the calculations I get 1.08 for Vx, which I think is wrong. Thanks

"Find Io in the network" nodal analysis Homework Statement http://img189.imageshack.us/img189/8807/homeworkprob22.jpg Find Io in the network Homework Equations V = IR current division, voltage division, KCL, KVL Nodal Analysis (or mesh)The Attempt at a Solution So I think I need to use...

Homework Statement The Attempt at a Solution Essentially I am having trouble with solving for I_sc when I remove the load and replace it with a wire. I used a super node at 1 and 4 and also in my diagram I have defined the currents with directional arrows. I have been on this question for a...

Homework Statement Mesh and nodal analysis are used to find unknown currents and voltages in planar networks. Why is it necessary when performing these network analyses that all of the source frequencies be the same? The attempt at a solution I know that superposition let's us analyze...

Homework Statement ive tried many things and can't seem to grasp the concept of KCL.i know the node I am looking for is between r1 & r3. i assumed i1+i2=i3. also looking for directions of currents. V1=30v V2=40v R1=82 R2=68 R3=47 Vx = ?Homework Equations i1 + i2 + i3 = 0 ? The Attempt at a...

My question about this excercise is the 80+20 part in the denominator. Why and when do I do that? I tried doing it but got the wrong answer

Homework Statement http://www.wifstrand.se/Albert/stuff/p6.5-9.png I'm stuck with finding v_o1 (voltage over the 10kohm resistor when all sources but the 3 V source, which I've labeled v_1, is set to zero); seems like it should be really simple but I'm missing an equation. Homework...

In nodal analysis method, two books use different and contradicting approaches and not sure which one is correct. One books says that currents at each nodes should be treated independently from the other nodes so that the same current can have two opposing directions in the same equations. The...

Homework Statement a)Write two node equations in terms of the literal variables. I1 = Is1 I2 = gm2Vo I3 = gm1Va I4 = Is2 Va = Voltage across R2 Vo = Voltage across R1 Vb = Voltage across R3 Homework EquationsThe Attempt at a Solution I tried setting up nodes right above R2 and Right above...

I need to find V0 in the given circuit. I've uploaded both the problem, and an annotated one with the variables I chose. These are the equations I got for the system: V_{0}=30-V_{2}-V_{3} V_{2}=30-i_{1}(10\Omega ) V_{2}=I_{X}(2\Omega ) V_{3}=30-V_{2}-(-i_{1})(1\Omega )...

Homework Statement I have to use Nodal analysis to find Vx Homework Equations our prof said that if we want to find the number of unknowns and eqxns necessary then we need to find all the nodes in circuit - the reference node - number of voltage sources, for this circuit that would be 4...

I need to solve this circuit using nodal analysis (find the voltage in all nodes), but i need the actual equations used to solve it. http://dl.dropbox.com/u/202411/p2/circuit328.png All supplied information is there. What I've done is to create 2 supernodes, like this...

Homework Statement I've obtained the node equations that's in the matrix for rows 1, 2, and 4. I got 3 as well but I'm not sure if my analysis was correct. http://img252.imageshack.us/img252/3151/nodeq.jpg The Attempt at a Solution http://img684.imageshack.us/img684/9803/dsc0010van.jpg So...

I'm trying to determine v,oc using nodal analysis. I have labeled the two node voltages at the top v,1 and v,2. When doing the KCL equation for node voltage 2, I run into the 1.1 kohm and 2.3 kohm parallel combination. Is it valid if I just combine these parallel resistors into one resistor?

Homework Statement http://img12.imageshack.us/img12/6886/nodalanalysisproblem.jpg The Attempt at a Solution I put in the currents for KCL in the diagram, though I'm not sure if I've done it right. So essentially I get the equation as i1 + 3 = i2 + i3 Current in = current...

When I'm reading a tutorial about Harmonic Balance algorithm (this is a link to the tutorial website), I'm quite confused by the concept it mentions about the nodal analysis of non-linear components, especially for: The non-linear circuit is modeled by its current function i(t) = i(v_1...

I'm working on an ac circuit, and we were told to use nodal analysis. Furthermore, we are asked to show a power balance between the sources and the power dissipated in the resistors, along with a reactive power balance between the sources and the inductors and capacitors. I have this formula...

For the following circuit, can someone please correct my equations for nodal analysis (KCL) I am especially unsure about my second equation because of the dependent voltage source to the left of the node. 1) I1 = (V1 - 3I2)/1 2) 0 = V3/2 + (V3 -V2)/2 3) I2 = (V2-V3)/2 + 2V3

Hello, I'm looking to work out the current at I in the following circuit using Kirchoff's current law and nodal analysis: [PLAIN]http://img853.imageshack.us/img853/4792/circuitgem.jpg Using Kirchoff's voltage law (and loop analysis), I got a current of (35/22)A, but for the current law...

Homework Statement Homework Equations V=IR, Nodal Analysis The Attempt at a Solution 1 and 2 in the diagram are the nodal equations. Considering that the left node is V1 and that the right node is V2. I don't know how to get from the nodal equations to step 3. I know that you go...

Homework Statement Homework Equations V=IR, Nodal Analysis The Attempt at a Solution 1 and 2 in the diagram are the nodal equations. Considering that the left node is V1 and that the right node is V2. I don't know how to get from the nodal equations to step 3. I know that you go...

Homework Statement Homework Equations V=IR, Nodal Analysis The Attempt at a Solution 1 and 2 in the diagram are the nodal equations. Considering that the left node is V1 and that the right node is V2. I don't know how to get from the nodal equations to step 3. I know that you go from step...

Homework Statement Homework Equations nodal analysis The Attempt at a Solution When i did the problem, i got 3V. Is this right or wrong?

Homework Statement Homework Equations Nodal Analysis, KVL The Attempt at a Solution

Homework Statement Apply nodal analysis to the circuit to find the power (released or absorbed?) by the 3-mA source. [PLAIN]http://img15.imageshack.us/img15/1546/circuity.png Homework Equations Ohm's Law V = IR The Attempt at a Solution OK, so firstly I have to label all the...

Homework Statement Homework Equations Equivalent resistance? Nodal analysis? V=IR The Attempt at a Solution I was thinking of using nodal analysis at the points designated by the arrows. The bottom one would be connected to ground. My question is if I picked out the nodes...

Hi, :) Please have a look on the following link: http://img836.imageshack.us/img836/1554/circuitmm.jpg 1: I was trying to solve a circuit. I was successful except the part where I was trying to apply the nodal analysis (it's at the very end of the linked scan). Where am I going wrong? By nodal...

Just to clarify the title... Basically for the below circuit we are required to find Vth, Rth and Vo. However, the method of solving this problem is a little strange to me, because as you can see, the source has a phase angle of 30 degrees. The solution to this problem basically says (to find...

Hi, :) 1: http://img19.imageshack.us/img19/2256/nodaldiagram1.jpg (diagram of circuit and few other details) 2: http://img36.imageshack.us/img36/5405/nodaldiagram2.jpg (solution) The book asks "Find the magnitude and polarity of the voltage across each resistor". I was trying to find...

Hi, :smile: Almost all the details you will find in the given link below: http://img710.imageshack.us/img710/1565/exampleproblemnodalysis.jpg You will find the expected (or, target answers) in the top right corner. As you can see my value for V1 is utterly wrong. It should have been...

Hi, :) Almost all the details you will find in the given link below: http://img171.imageshack.us/img171/9797/nodalysis1.jpg You will find the expected (or, target answers) in the top right corner. As you can see my value for V1 is wrong. It should have been 80V according to the answer...

Homework Statement Following circuit has v=30v, r1=20ohm,r2=10ohm,r3=15ohm. A)Determine inductor current (I) and capacitor voltage (Vc). B)Determine power supplied by source before switch is open. Homework Equations KCL P=VIThe Attempt at a Solution I attempted to treat the load plus the...

Basic Circuit - Nodal Analysis Homework Statement I am trying to find ix and iy. Here is the figure http://tinypic.com/view.php?pic=x2mr93&s=7 The Attempt at a Solution Node 1 -3 + V1/0.2 + (V1-V2/0.5) = 0 -.06 + 0.1V1 +0.2V1 - 0.2V2 =0 -.06 + 0.3V1 -0.2V2 = 0...

Homework Statement Find V1, V2 and V3. Homework Equations Nodal Analysis Supernode Equation Capacitance = 1/R KCL & KVL The Attempt at a Solution KCL @ node 0: Ic = v2(-G1) +v3(-G3) Node 1: Ic + I1 +v3(G2+G3) +V2(-G3) = 0 (subbing in Ic) v2(G1+G3) + v3(g-3) = I1....Equation (1) Node 2...

Homework Statement see attached Homework Equations The Attempt at a Solution Hey, I'm having trouble with a 2 PSU resistor NA circuit. here is what I've done: N1=V1 N2=v2 N3=v3 = 0V N4=v4 0=(10-v1)/4K7-V2/10k-(V1-V2)/1K 0=(V1-V2)/1K-(V2-V4)/470-(V2-V4)/1K...

Homework Statement See attached picture. Homework Equations The Attempt at a Solution I really suck at this and am having trouble understanding the textbook we have. here's my attempt: I'm calling node 1 v1 and 2 v2. so 0=(v1-v2)/4k7+v1/10k+(v2-v1)/1k 0=(v2-v1)/1k+v2/470+v2/1 I know I have...

hi, i got a question about mna. i know how to write matrixes with(out) voltage source but i don't know what i should do when my instructor askes me placing vcvs or vccs instead of any resistor. i have lecture notes for vcvs ust like; Vpq=u(mu)*Vkl i should add extra rows and cols. to matrix of...

Homework Statement Determine I_b in the circuit below using nodal analysis. http://img8.imageshack.us/img8/1339/circuit39.th.png Homework Equations Ohms LawThe Attempt at a Solution Can someone tell me if i have done anything wrong in my first part of the question. Becuase i am pretty sure...

Homework Statement The circuit shown has two inputs, V_{s} and i_{s} and one output V_{o}. The output is related to the input by the equation V_{o}=ai_{s}+bV_{s} where a and b are constants to be determined. determine the values a and b by (a) writing and solving mesh equations and (b) writing...

Homework Statement Im tring to apply nodal analysis on the following, and would like to know if i have done this correctly. Can someone please review it. [PLAIN]http://img121.imageshack.us/img121/5573/lastscanq.jpg Thank you for your time. Matt

Homework Statement Find the voltage v across the 5 Ohm resistor as shown in the attached drawing. Homework Equations Ohm's law, V=IR The Attempt at a Solution I have done plenty of these using different techniques, superposition/source transformation, nodal or mesh analysis, etc...

Homework Statement Find V1 and i1 using nodal analysis The Attempt at a Solution I know i1 is 0 because of a circuit break. But, I am not able to figure out how many nodes there are in this circuit? I thought there are four nodes connected to the reference point but the book...

Homework Statement I'm confused about how to use KCL when doing Nodal Analysis. Please consider the diagram below: http://img27.imageshack.us/img27/4900/20091019131641633915550.jpg Homework Equations My first point of confusion is that the diagram shows the current "4Ix" going up...

Homework Statement [PLAIN]http://img844.imageshack.us/img844/8508/circuit.png Homework Equations KCL set ups The Attempt at a Solution I am having trouble setting up the KCL equations The 30V voltage source on the left with the resistor is messing me up, how do I incorporate...

[PLAIN]http://img707.imageshack.us/img707/2437/elect2.png I'm just wondering where I have to put the reference node in this circuit when doing nodal analysis.

in the nodal analysis -one of ways of analysis DC circuit - i couldn't understand the physical roots of this way . i mean how could i make the voltage of a node equal to zero by make it as a reference point without having any effects on the voltage(electric potential) of the rest nodes ...