# Trick Resistors Combination

1. Jul 15, 2008

### smaung

Hello,

I have a tricky problem with resistors combination.

please check this url - http://www.disruptedstreets.com/physics.png [Broken]

Can anybody help me with this?

Thanks

The Question is -

Calculate the Current at Point X and potential difference between points A and B.

Last edited by a moderator: May 3, 2017
2. Jul 15, 2008

### jablonsky27

looks to me like R1, R2, R3 are in parallel and the pot. difference between A and B is that provided by the battery.

3. Jul 15, 2008

### smaung

yes me too

but some said .... there is a short circuit. but i don't know where is it ... :( and that's why i'm confused.

4. Jul 15, 2008

### nucleus

What does "X" represent?

5. Jul 15, 2008

### smaung

"X" is the current at that point. We need to find the current ( I ) at "X". AND potential difference ( V ) between "A" and "B".

6. Jul 15, 2008

### smaung

Oh sorry I Forgot. The battery is 2V.

7. Jul 15, 2008

### Defennder

I don't see any short-circuit. But in any case as jablonsky27 has noted, the three resistors are all in parallel. That should simplify the problem tremendously.

8. Jul 16, 2008

### smaung

yea me too.. but.. there is another fault. the polarities of the battery is wrong .. positive is up and negative is down

9. Jul 16, 2008

### Integral

Staff Emeritus
Turn the paper over.

No.

Compute the total resistance, apply Ohms law.

10. Jul 16, 2008

ok thanks.