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

http://img130.imageshack.us/img130/2366/capturewvb.jpg" [Broken]

2. Relevant equations

V=IR

3. The attempt at a solution

Given Information

V I R

Battery

R1 12 V 2 ohm

R2 4 ohm

R3 24 V 4 ohm

R4 8 ohm

I can calculate the current of R1

V = IR

I = V/R

I = 12 V/2 = 6 A = I1

pl if i'm correct sense R1 and R2 are in parrallel and right next to the battery they should share the same voltage?

R2 = 12 V

from which I can calculate the current

V = IR

I = V/R = 12 V / 4 ohm = 3 A = I2

now the current for the whole batter should just be I1 + I2? = 6 A + 3 A = 9 A = I battery

I can fidn the R battery by doing

(1/R1 + 1/R2)^-1 + (1/R3 + 1/R4)^-1 = (1/2 + 1/4)^-1 + (1/4 + 1/8)^-1 = 4 ohm = R battery

am i doing this right were do i go from here?

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# Homework Help: Help With Circuits

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