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(25 Pts.) 1. Write a set of equations sufficient to solve for the nodal voltages VA, VB, and VC. Do not solve.

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(25 Pts.) 2. Determine the Thévenin equivalent of the following network.

Vth =

Rth =

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(25 Pts.) 3. For the following circuit, and VIN(t) as shown, determine Vout(t) for t > 0.

Vout(t) =

0 < t < 20µsec

Vout(t) =

t < 20µsec

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(25 Pts.) 4. Consider the following ideal op amp circuit. VIN(t) is shown in the plot. Determine the output voltage