Consider the inverting amplifier shown in (Figure 1). The dc signal source has a value of 400 mV. The op amp has an input resistance of 500 k?, an output resistance of 5 k?, and an open-loop gain of 300,000. 1) Find the Thvenin voltage of the equivalent circuit (Figure 2) with respect to the output terminals a, b. 2) Find the Thvenin resistance

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Consider the inverting amplifier shown in (Figure 1). The dc signal source has a value of 400 mV. The op amp has an input resistance of 500 k?, an output resistance of 5 k?, and an open-loop gain of 300,000.

1) Find the Thévenin voltage of the equivalent circuit (Figure 2) with respect to the output terminals a, b.

2) Find the Thévenin resistance of the equivalent circuit with respect to the output terminals a, b.

3) What is the output resistance (the resistance seen from the terminals a and b) of the inverting amplifier?

4) What is the resistance (in ohms) seen by the signal source vs when the load at the terminals a, b is 500 ??

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