Mesh analysis (or the mesh current method) is a method that is used to solve planar circuits for the currents (and indirectly the voltages) at any place in the electrical circuit. Planar circuits are circuits that can be drawn on a plane surface with no wires crossing each other. A more general technique, called loop analysis (with the corresponding network variables called loop currents) can be applied to any circuit, planar or not. Mesh analysis and loop analysis both make use of Kirchhoff’s voltage law to arrive at a set of equations guaranteed to be solvable if the circuit has a solution. Mesh analysis is usually easier to use when the circuit is planar, compared to loop analysis.
Homework Statement
Homework Equations
KVL/KCL The Attempt at a Solution
Meshes for;
Loop 1
20 = 6i1 - 4i2 - 2i3
Loop 2
-4i1 + 18i2 - 8i3 = 0
Loop 3
2i1 + 8i2 + 6i3 +10i0 = 0
For the life of me I cannot get -5A as the answer. I have tried the following for i0;
i0 = i1 - i2
i0 =...
Homework Statement
Find the value of CSB(current source B) and determine the value of I.
Homework Equations
Mesh equations
The Attempt at a Solution
mesh:
a -> Ia = 0
b -> 11Ib = -12
c -> 6Ic = 12
d -> 2Id = -8
e -> Ie = -CSB
Ic = 2 A
Id = -4 A
then I cannot...
Homework Statement
We have been doing mesh analysis of circuits, and I am just trying to work out how to do it in a larger circuit.
Homework Equations
2. Using mesh analysis work out the currents flow through each of the three meshes. From these current values calculate the voltage...
Hi guys,
is there anyway i can solve the voltage across the current source using Mesh Analysis. I already solved for the voltage across the current source using Nodal analysis. And btw, do you have any tips which technique is the best to use (Kirchoff's, Mesh, Nodal analysis) for different...
Homework Statement
Please see the attached file for the problem statement. I am attempting to find the current across the .25 Ohm resistor.
Homework Equations
Using kirchhoffs voltage law I write the following equations:
(1 Ohm)(2 amps) + (.25 Ohm)(2 - M1) = 0
The Attempt at a...
Hi guys,
I've referenced this forum many times so now its time to join!
My problem, I'm having trouble understanding Nodal and Mesh analysis (and when to use each one, and why), especially when inductors and capacitors are present.
For example here is a question that was proposed to me...
hi guys
I am trying to fined Vo and Io using mesh analysis for the following cct
The formulas I made from the cct using mesh analysis don't seem right
here is what I have-
loop1
2(I1 - I2) = 0
loop2
2(I2 - I1) + I2(j4) - 3Vo = 0
loop3
3Vo + I3(-2j) = 0
and
I1 = 4<-30
vo...
Homework Statement
see attached
Homework Equations
The Attempt at a Solution
I'm working on the first circuit at the moment.We have to use mesh analysis to find the voltages at the i have put it in multisim and know the voltages are 4.78 and 4.58 respectively.
i have done the...
this question is part of my electronics CW, I've done it before, but briefly. and looking back at all my old notes I've realized that every single one I've done before has 2 sources and only 2 loops, whereas you can see from the image below that this has 3 and its getting me in quite a...
Homework Statement
I am supposed to use mesh current analysis using the following circuit diagram which is in the phasor domain:
Homework Equations
KVL
The Attempt at a Solution
Let's number these meshes from left to right 1,2,3. Here is what confuses me:
If take a look at...
Homework Statement
Homework Equations
KCL & KVL:
The Attempt at a Solution
Ok folks :smile: I am not sure where to go from here. Someone suggested changing the 144V to its Thevenin equivalent, which I have done below. I know that I am supposed to apply KCL at each node...
Homework Statement
Use mesh analysis to determine i1,i2 and i3
Homework Equations
The Attempt at a Solution
using mesh analysis i get rid of the 3A current source and the 1ohm resistor
1) -6 + 2(i1 - i3) + 4(i2 - i3) + 8i2 = 0
2) 2(i3 -i1) + 2i3 + 4(i3 - i2) =0
3)i1 + i3 = 3...
The problem can be seen @ http://gregsomers.com/elg.jpg
Depending on what way is chosen for the current going through the 50ohm resistor, there are completely different answers... how do i know which direction to choose?
I.E. 50(i2-i3) for current flowing to the right OR 50(i3-i2) for...
Homework Statement
a) Use Y-Δ transformation to simplify the circuit in Figure 2-a to that in Figure 2-b and find the elements and values of Z1, Z2 and Z3
b) Use mesh analysis for the circuit in Fig. 2-b to calculate I1 and I2
Here are the circuits...
This was a test problem on an exam of mine. The problem asks for you to find the current through the 8 ohm resistor, which is 2.5 amps. I can solve the circuit by superposition or by source transformation and then reduction, but I cannot seem to solve it with mesh analysis.
I defined three...
Hi,
I have the following circuit:
[PLAIN]http://img265.imageshack.us/img265/6476/upg2.png
But when i try to calculate the mesh currents i end up with the wrong answer.
This is what i did:
Equation for i1:
6i_1 + 18(i_1-i_2) -30
Equation for i2:
17i_2 + 18(i_2-i_1) -19
Adding currents in the...
EDIT I mean nodal, not mesh analysis xD
http://img205.imageshack.us/img205/5931/omgt.jpg
http://img694.imageshack.us/img694/2570/omg2p.jpg
Are my are my equations correct?
Here is the solution according to wolfram...
http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink
Image : [PLAIN][PLAIN]http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink
How do i use mesh analysis to find the current of RL?
can...
Homework Statement
The problem, as given in the textbook is:
http://www.mcschell.com/circuit.jpg
Homework Equations
KCL, KVL
The Attempt at a Solution
The issue I'm having with this problem is that I get two different values for Ix depending on how I set up the equations for this...
Homework Statement
Hello can you tell me a story about mesh analysis in electronics.I had no knowledge in mesh analysis so can I have a minimum knowledge in this topic
Homework Equations
The Attempt at a Solution
Im doing mesh analysis on an AC circuit only problem is i don't know how to handle the dependant voltage source.
My circuit:
http://img139.imageshack.us/my.php?image=accircuitrx0.jpg
I think I am supposed to just assign a value for Vo but I am not sure. Is it possible to work out what Vo...
Homework Statement
Using mesh analysis work out the currents flow through each of the three meshes. From these current values calculate the voltage of node A, and node B with respect to the ground node.
Find equivalents of sub circuits A-G, B-G, A-B by applying Thevenin's theory. Then...
Hello everybody on the physics forum, i was just looking for someone to point me in the right direction and tell me if my equations are right
Homework Statement
Determine the current though the resistance R2 by mesh analysis
http://www.freeimagehosting.net/uploads/a77e95d378.jpg
The...
[SOLVED] Mesh Analysis
Homework Statement
I am having trouble solving this circuit for its currents. I have also tried nodal analysis, and haven't been able to come up with anything
http://img90.imageshack.us/img90/4240/circuitfp2.th.jpg
Homework Equations
The Attempt at a...
Homework Statement
Use mesh analysis to find the current through the 4 Ohm resistor.
Homework Equations
The Attempt at a Solution
From this circuit I managed to work out the three mesh equations using mesh analysis.
Mesh 1 = 7I1 + 4I2 = 67
Mesh 2 = -4I1 + 15I2 - 6I3 = 152...
Homework Statement
For the following circuit determine:
I, Vab, Vac, Vbd, Vcd
See attachment for circuit diagram.
Homework Equations
Mesh Analysis method
The Attempt at a Solution
Using mesh analysis:
-7V + I1 - I2 + 6V + 2I1 -2I3
= 3I1 - I2 -2I3 ------------------mesh 1...
I'm quite confused by mesh analysis. I understand that the idea is basically to apply KVL to each mesh. For example, if you have a loop that contains, say, a 3ohm and 2ohm resistor, and that's it, what is the correct KVL equation? Is it simply 0=3I+2I?
As another example, check out this...
Hello , I am a 4th year ME ,I have as an Final year project to do a dynamic mesh analysis for the blades of a wind turbine ! unfortunately , i don't know how to start since it is the first time I work with the Dynamic mesh . I practiced ont he Fluent softwares when I took the CFd course, so i...
Homework Statement
http://img266.imageshack.us/img266/7097/screenshot01sm8.jpg
If I use mesh analysis, can I assume that Ix in the lower right mesh will be my mesh defined current (the only current through that mesh)?
Mesh Analysis -- (4 meshes)
Homework Statement
http://img185.imageshack.us/img185/1541/screenshot01ly9.jpg
Homework Equations
V=IR
KVL
The Attempt at a Solution
Loop 1 is the top left loop.
Loop 2 is the top right loop.
Loop 3 is the bottom right loop.
Loop 4 is the bottom left loop...
So here is what the problem states:
Use both nodal analysis and mesh analysis to find Vo in the circuit below.
http://synthdriven.com/images/deletable/EEN201-05.jpg
My confusion:
I'm okay with the nodal analysis, I'm just a bit confused with the mesh analysis...
I'm confused as to...
I need help with the following mesh problem. Doing the source conversion screws me up. I really need to get this problem correct and would like to check my answer with somebody who is more competant than myself at mesh analysis.
Please help asap
Thanks in advance