Need help with Nodal Analysis. I have the work, just need a step explained.

AI Thread Summary
The discussion focuses on a request for assistance with nodal analysis in a circuit problem. The user is struggling to progress from the nodal equations to the next steps in their solution. A helpful response suggests replacing Ix with V1/10K in equation (2) to derive an expression for V1, which can then be substituted back into equation (1) to solve for V2. The user expresses gratitude for the clarification and acknowledges their initial confusion. The exchange highlights the importance of clear guidance in understanding nodal analysis techniques.
naivy
Messages
40
Reaction score
0

Homework Statement



4wzrz.png


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 3 to step 4 using V=IR.

I tried solving the nodal equations to get to step 3...

Can someone please work it out for me? Thank you

Please help
 
Physics news on Phys.org
In (2) replace Ix with V1/10K. Solve for an expression for V1. Substitute this expression for V1 into (1). Solve for V2. All done.
 
gneill said:
In (2) replace Ix with V1/10K. Solve for an expression for V1. Substitute this expression for V1 into (1). Solve for V2. All done.

Ohh wow. Now I feel dumb(er, as many would argue here at pf)...

Thanks for the help gneill!
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging 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...
View full post »

Similar threads

Mastering Nodal Analysis for KCL and Ohm's Law: Solving Branching Node Equations
Replies
13
Views
2K
Find Io in the network nodal analysis
Replies
6
Views
2K
Engineering Unable to model Transresistance amplifier with feedback correctly
Replies
1
Views
2K
How to number nodal and anti nodal lines
Replies
12
Views
6K
Help with Circuit Nodal Analysis
Replies
2
Views
2K
Nortonization and nodal analysis
Replies
2
Views
1K
How many nodal lines for two point sources at 2.5 lamda separation?
Replies
1
Views
9K
Electric Circuit Analysis, Nodal Analysis and finding Voltage.
Replies
2
Views
2K
Solving Circuits: A Nodal Analysis Approach
Replies
18
Views
3K
Kirchhoff's current law and nodal analysis
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top