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

Find the current in the bottom-most wire (the I_{5}current).

2. Relevant equations

[tex]

I=\frac{\Delta V}{R}

[/tex]

Kirchhoff's current and loop rules.

3. The attempt at a solution

Using Kirchoff's current and loop rules, I obtained:

I then substitued my results into my equation for I_{5}and used Kichoff's rules again to put I_{5}in terms of I_{1}

Then I solved for I_{1}and used that to solve for I_{5}.

Unfortunately, the answer in my book is 2.1 amps. I've worked this problem multiple times, and the only thing worse than doing all that algebra over and over again is getting a wrong answer each time. Can someone help me out here?

Also, I didn't see an intro section, so I guess I'll take care of that here. My handle is BadAnima, and I'm currently a freshman in university. My major is chemical engineering, but I'm not sure if I want to stay on this track or go into physics.

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# Calculating current in a wire

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