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

Number 15

[PLAIN]http://lookpic.com/d2/i2/386/kFYE2mOH.jpeg [Broken]

http://lookpic.com/d2/i2/386/kFYE2mOH.jpeg [Broken]

2. Relevant equations

Rs=R1+R2+R3

Rpar=1/r1+1/r2+1/r3

I=V/R

3. The attempt at a solution

1/(1/5+1/10+1/5)=2

Rtotal=7

I=21/7

I=3

I don't know what else to do to solve this problem. Any help would be greatly appreciated.

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# Homework Help: Current across a resistor

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