# Circuits! help

1. Mar 20, 2009

### qwerty2x

1. The problem statement, all variables and given/known data

http://img25.imageshack.us/img25/5953/elek.png [Broken]

2. Relevant equations

v=IR

3. The attempt at a solution
I have tried finding the total resistance of the circuit and then applying ohms law. My answer is 0.65 Amps but thats incorrect.

Any help is much appreciated!

Last edited by a moderator: May 4, 2017
2. Mar 20, 2009

### tiny-tim

Hi qwerty2x!

Show us your full calculations, and then we can see what went wrong, and we'll know how to help!

3. Mar 20, 2009

### srabate

Use the equivalent resistance formulas and then Ohm's Law

For two resistors in series $$R_{eq} = R_{1} + R_{2}$$
For two resistors in parallel $$\frac{1}{R_{eq}} = \frac{1}{R_{1}} + \frac{1}{R_{2}}$$

or two resistors in parallel simplified $$R_{eq} = \frac{R_{1}R_{2}}{R_{1}+R_{2}}}$$

Hope this helps!