# Problem involving Source Transformation and Nodal Analysis

Tags:
1. Nov 9, 2017

### Conor_B

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

2. Relevant equations

3. The attempt at a solution
I have attempted and completed all questions. However, I am now trying part (b) with transforming the voltage source into a current source. I am unable to work out the current and I am unsure what to do next.

I have included my workings

I believe the answer should be -0.5 A

I appreciate any help. Thanks!

Attempt at part (b):

Completed Solution:

2. Nov 10, 2017

In my opinion, all three solutions are correct.

3. Nov 10, 2017

### Conor_B

Thanks for checking my solution. I really appreciate it.

However, what about my attempt at the source transformation of the voltage source? I haven't completed that part and I am unsure what to do. Any advice?

4. Nov 10, 2017

### scottdave

You have 3 resistors in parallel. Find the current through that equivalent "resistor", which will give you the voltage across that resistance.

5. Nov 10, 2017

Source transformation is o.k.

6. Nov 14, 2017

### Conor_B

Thanks Scott! That's makes sense
• The total resistance of the three resistors in parallel is 1 ohm.
• The resulting current flowing into the resistors is -1 A.
• The voltage across the three resistors is then -1V
• And I = -V/2 = -1/2 = -0.5 A