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

What is the combined resistance when the switch is closed?

2. Relevant equations

IR=V

3. The attempt at a solution

I found that I_{1}=5.2A and that I_{2}=9.1A. The answers follow suit.

Now I thought that calculating the combined resistance with 60/(I_{1}+I_{2}) would be correct, however the answer is 4Ω.

Can anybody help me out in this? Thanks.

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# Homework Help: Combined resistance in this circuit

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