(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For the circuit in the figure below, V = 3.56 V and R = 2.04 Ω. Find the potential difference between points a and b.

This is the link to the figure: http://i749.photobucket.com/albums/xx137/abcdmichelle/physics/26-62alt1.gif

2. Relevant equations

V=IR

3. The attempt at a solution

So I needed to find the current passing through R.

I said that the resistor at the top left had current I, the resistor at the top right was I(2), the resistor at the bottom left was I, the resistor at the bottom right was I(2), and the resistor R in the middle had a current of I(3).

I applied the junction rule and the loop rule to the left hand side loop, and found the current to be:

2-I-2.04I(3)-3.56+I=0

Current I(3)=0.76

So then to find the potential difference I did:

V= -(0.76)(2.04)-3.56

This is wrong, I'm not sure if I did anything right here!

Please help!

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# Homework Help: Circuit: Potential Difference

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