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## Homework Statement

2. For the following circuit, find RT, IT, I3, V1, V3, V5.

http://img520.imageshack.us/my.php?image=m17aje5.gif

## Homework Equations

V = IR, ohms law, Kirchoff's laws

## The Attempt at a Solution

RT = R1 + R2 + R3 + R4 + R5 + R5

RT = 20 + 22 + 30 + 27 + 40 + 20

RT = 159 ohms

IT = V/RT

IT = 120 V / 159 ohms

IT = 0.75 amps

I have the total resistance and total current.. I'm not sure exactly how to go about finding the current at I3 though. Any help would be appreciated.

voltage, minus the voltage drop of the 2 resistors before it, / resistance of the 2 resistors before it? I'm not sure.