- #1

diredragon

- 323

- 15

## Homework Statement

## Homework Equations

3. The Attempt at a Solution [/B]

I have just started a course in electric circuits and it's rather simple but i don't get a few things. Mainly ##U=IR## and ##E## here is the voltage source. So i can use the voltage circulation rule to get the ##I## right?

##E-IR_2-IR_1-IR_3=0##

##I=\frac{E}{R_2+R_1+R_3}##

The voltage in the point ##B## is the ##E-IR_2## right? and the voltage in point ##A## must be zero because of the circulation. But what would be the voltage of the point between ##B, A##. Should i do it like ##E-IR_2-IR_1## and to calculate it like this? Now this is a simple circuit but i don't get what happens if the current divides or if there are some more complicated schemes. Does this still apply? And is this right?