# Homework Help: How to draw a circuit from a word problem.

1. Jul 25, 2011

### NeomiXD

Homework Question:

Four identical 4Ω resistors have been connected in such a way that their total resistance is 4Ω. Draw a diagram to show how they are connected.

My Question:

How do you solve a question like this? How do you classify it as a parallel or series circuit or does it even matter?

2. Jul 25, 2011

### rock.freak667

For resistors in series you add and in parallel you add the reciprocals right?

So automatically you can see that the four resistors are not all in series and not all in parallel right?

So what happens if you have three in parallel and one in series, what will happen? (greater, less or equal 4)

If it is equal to four then you stop, if not you continue to just create possible combinations in your mind. You will easily see that you can't just place a 4Ω resistor in series to get total resistance of 4Ω.

3. Jul 26, 2011

### Staff: Mentor

NOT the answer they were looking for

#### Attached Files:

• ###### Fig1.gif
File size:
1.2 KB
Views:
458
4. Jul 26, 2011

### cupid.callin

try adding 2 resistors in parellel. what result you get? ... Now look what else you need to reach 4Ω ...

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook