Why Short the 4kΩ Resistor in Source Transformation?

AI Thread Summary
The discussion centers on the confusion regarding the shorting of a 4kΩ resistor in a circuit transformation. It clarifies that the resistor is not randomly shorted; rather, it is part of a Thevenin equivalent transformation involving a 5 mA current source and a 16kΩ resistor. This transformation simplifies the circuit analysis by replacing the original components with an equivalent circuit. The distinction between Norton and Thevenin equivalents is noted, confirming that the transformation in question is indeed Thevenin. Understanding this concept is crucial for accurately analyzing circuit behavior.
Mdhiggenz
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Homework Statement


I am a bit confused on why they can just randomly short the 4kΩ resistor, as you can see from the first pic to the second pic.
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THanks


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The Attempt at a Solution

 
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They didn't just short the 4K resistor. The 5 ma current source, the 16K resistor and the 4 k resistor was made into a norton (or is it thevinin) equivalent.
 
It's Thevinin, I just checked.
 
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