Problem involving Source Transformation and Nodal Analysis

[Weaver]

Homework Statement

Homework Equations

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:

 

[Babadag]

In my opinion, all three solutions are correct.

 

[Weaver]

In my opinion, all three solutions are correct.

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?

 

[scottdave]

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?

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

 

[Babadag]

Source transformation is o.k.

 

[Weaver]

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

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