Thevenin Voltage and Resistance Calculation for Circuit with Current Sources

AI Thread Summary
The discussion focuses on calculating the Thevenin voltage and resistance for a circuit with current sources. The initial confusion arises regarding the Thevenin resistance, which was stated to be 1k ohm. It is clarified that to find Thevenin resistance, current sources should be replaced with open circuits, leading to the correct calculation. The final consensus confirms that the Thevenin voltage is 5V and the resistance is indeed 1k ohm. Understanding the replacement of current sources is crucial for accurate Thevenin resistance calculations.
Yaaaldi
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Homework Statement



Find the thevenin voltage and thevening resistance of the circuit.

[PLAIN]http://img573.imageshack.us/img573/2525/thevening.png


The Attempt at a Solution



The posted answers for the question are 5v and 1k ohm. But I can't see how the thevenin resistance is 1k ohm. Can anyone explain? I see the 5 and 1 being in parallel giving 5/6 k ohm.

edit: think I figured it out as I posted it. current sources get replaced by open circuit to calculate thevenin resistance
 
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Yes, that's correct. You set sources to 0, so a current source would be replaced by an open circuit since no current flows through it.
 

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