This is is quite likely. I'll remember that for the next time I come across such an issue :smile:
... Alright. I understand why the voltage across the load will be the same as the voltage across the 120Ω resistor. This can be found using partition of voltage. VTH=240V * (120/120+40) which is...
This is a past exam question, and I've it copied out word for word (just did a recheck :-p)
I was also confused at that sudden value change, but I assumed that they had neglected to show the load resistance as variable on the diagram. Either that, or a it's typo (I went with 360V while trying...
Homework Statement
Q8. Circuit analysis plays an important role in the analysis of systems designed to transfer power from a source to a load. Maximum power transfer can best be described with the aid of the circuit shown in Figure 8a.
A circuit is given (please refer to attached file)...