Solving Circuit with Mesh Analysis

AI Thread Summary
The discussion focuses on solving a circuit using mesh analysis, where the user struggles with forming correct mesh equations and applying nodal analysis. They skipped a mesh involving a 1A independent voltage source, leading to confusion about forming a supernode. Despite having enough equations, the user receives incorrect answers, indicating potential errors in their calculations. Clarifications are made regarding the relationship between currents, particularly that i3 equals 1 amp, simplifying the problem. The user seeks further assistance to identify any remaining mistakes in their approach.
jesuslovesu
Messages
185
Reaction score
0
[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 Solution



Can anyone check what's wrong with my mesh equations? I skipped the mesh with the independent voltage source (1A) and because I wasn't sure how to form a supernode with it. But I have enough equations to solve, but when I do I get the wrong answers.
 
Last edited by a moderator:
Physics news on Phys.org
Your current source isn't equal to i3 - i4.
 
Thanks for your reply, you're right i messed that equation
1 A = i3 + i4 ? right
Unfortunately, I still seem to be getting an incorrect answer (but they are very close to the correct answers) is there anything else I messed up? I forgot to draw the direction of ix on the picture but it is the current between v2 and v1 (thru the 5 ohm resistor). And I believe I did get the current correct on that one.
 
Last edited:
i3 is simply equal to 1 amp. There is no need for a loop equation for Loop(i3). This also makes the problem easier to solve.
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top