- #1
erok81
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- 0
Homework Statement
This one has a few parts, so let's start with part a. See attachment for circuit. I've got two drawings in the attachment. I'll label them A and B. Image A is the original circuit.
Homework Equations
None.
The Attempt at a Solution
My first step is to find set RL to open. I can use a voltage divider equation and find the voltage to be 16V.
The next (which is where I am stuck) is to find RL as a short. Shown by image B. My professor wasn't the best in showing this as he used some trick I have no clue how solved this way.
I can find ITOT using...
[itex]I=\frac{V}{R} \Rightarrow \frac{24}{3+6//4}[/itex]
Solving for ITOT gives me 4.4A. My professor used this value and somehow came up with the current over the 4Ω resistor.
Then plugged it into..
[itex]R_{th} = \frac{V_th}{I_{short}}[/itex]
To find the Thevenin equivalent.
How does one find the current when RL is a short?