- #1

ihearyourecho

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## Homework Statement

Suppose the three resistors in the circuit have the values R1 = 180, R2 = 220, and R3 = 350, and that the emf of the battery is 18.0 V

http://session.masteringphysics.com/problemAsset/1126258/3/5416321031_128.jpg

Find the potential difference across each resistor.

Find the current that flows through each resistor.

## Homework Equations

V=IR

## The Attempt at a Solution

These things really confuse me, but here is my shot:

V=IR

Itotal=18/(1/180+1/220+1/350)=.233

I also know that due to the loop rule, the sum of all of the potential differences is 0. Because of the junction rule, the current flowing into a junction must equal what's flowing out. I'm just not sure how I can figure out either the V or I across a resistor if I have two unknowns...

any help would be awesome ! :)