# Homework Help: Kirchoffs rule question

1. Jul 27, 2014

### emuhlay08

this is a rough diagram of the picture, please note the direction of the current. that is what is throwing me off right now. The answer I get for I3 is 8.2 ohms and that seems a bit unrealistic to me.
the question is
a) what is the magnitude of the current in each resistor
b) what are the directions of the current in each resistor

#### Attached Files:

• ###### IMG_0001.jpg
File size:
25.6 KB
Views:
109
Last edited: Jul 27, 2014
2. Jul 27, 2014

### Orodruin

Staff Emeritus
Well, apart from the picture being impossible to interpret, the answer simply cannot be 8.2 ohm as currents are measured in ampere.

Otherwise it should be a simple matter of applying Kirchoff's laws. Assume a current for each resistor and see where it takes you. If you write down how you arrive at your result, it will be easier to see if and where you go wrong.

3. Jul 27, 2014

### emuhlay08

I meant Amps, sorry. Even though, it seems like a very large number. Also, I uploaded a picture of the circuit so it can be interpreted.

4. Jul 27, 2014

### Orodruin

Staff Emeritus
So, what relations have you obtained from Kirchoff's laws?

5. Jul 27, 2014

### Staff: Mentor

Just FYI, I deleted several posts to clean the thread up.

6. Jul 27, 2014

### emuhlay08

This is what I have so far

#### Attached Files:

File size:
17.9 KB
Views:
121
• ###### IMG_0003.jpg
File size:
20.5 KB
Views:
118
7. Jul 27, 2014

### Orodruin

Staff Emeritus
You may want to reconsider your application of the current law. Which currents go into the point and which go out?