Question: If the 723 voltage regulator is used to realize an output voltage V o = 10 V with a 1-k load, calculate the output resistance

If the 723 voltage regulator is used to realize an output voltage Vo = 10 V with a 1-kΩ load, calculate the output resistance and the loop gain of the regulator. If a 500-Ω load is connected to the regulator in place of the 1-kΩ load, calculate the new value of Vo. Use SPICE to determine the line regulation and load regulation of the circuit. Use I1 = 1 mA, β = 100, VA = 100 V, Is = 10−15 A, and rb = 0.

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