Most of the numerical work has already been done in the Detailed Thévenin Generator Example.
Determination of Open-Circuit Voltage
Please refer to the Thévenin Example for details on finding Voc = 3.71 V.
Determination of Short-Circuit Current
Please refer to the Thévenin Example for details on finding Isc = 1.05 mA.
Determination of Norton Resistance
Norton Generator Ready for Use!
Now the current can be found by finding the equivalent resistance of the parallel combination of the load resistance and the Norton resistance; this resistance is 2.22k. Application of Ohm's law using the equivalent resistance and the Norton current then yields the voltage across the pair of resistors: (2.22k)(1.05 A) = 2.33 V. Thus the current through the load resistor is I = (2.33 V) / 6k = 0.39 mA.