Recent content by StarMan1234

Can you recommend any simple way to solve all the equation to find, say, I2? I don't know where to begin with them. I could use a calculator with matrix functions to help, but is that the only way. It looks as if the equations are all interdependent.

I1+I2=I4+I5 Is this what you mean?

Your diagram is perfect. Okay, I see what you mean. My equations: -I2R1-I3R3+I1R2=0 (upper triangle) -I3R3-I4R1+I5R2=0 (lower triangle) E-I1R2-I4R1=0 (simplest path that includes the battery) This part is where I'm absolutely stuck. I have 5 unknown currents, and 3 equations. My job...

Homework Statement In the figure ε = 9.55 V, R1 = 2090 Ω, R2 = 3360 Ω, and R3 = 4440 Ω. What are the potential differences (in V) (a) VA - VB, (b) VB - VC, (c) VC - VD, and (d) VA - VC...

I have U= (E/R1)/((1/R1)+(1/R2)+(1/R3)) But what I don't understand is how to solve it in terms of R3 like you said. This equation just looks like a mess.

Hey ehild, I isolated I1. I1= (E-U)/R1 I2=U/R2 I3=U/R3 I1=(U/R2)+(U/R3) I don't know how solve this equation for U as a function of R3. I'm really stuck. But if you can help me to do that, then I think I can use that equation by plugging it into P=U^2/R3, taking the derivative and...

Homework Statement In the figure R1 = 2.22 Ω, R2 = 5.08 Ω, and the battery is ideal. What value of R3 maximizes the dissipation rate in resistance 3? R2 and R3 are wired in parallel to each other. R1 is in series with the combination of R2 and R3. Emf is not given. Homework Equations...