Questions 1 – 3: The op-amp in Figure 1 is ideal. Determine va, vout, and iout. 1.) Calculate the value of va and place your answer in the box.
2.) Calculate the value of vout and place your answer in the box.
3.) Calculate the value of iout and place your answer in the box.
4.) Find the equivalent capacitance across terminals a and b of the circuit shown in Figure 2 and place answer in box.
Questions 5 and 6: Determine the current iL(t) and energy stored in the induction shown in Figure 3 attimet=2seconds.Letvs(t)=0fort<0andvs(t)=(6t +6)Vfort≥0.Theinductorisnot magnetized for t < 0.
5.) Find the inductor current at t = 2 seconds and place answer in box.
6.) Find the energy stored in the inductor t = 2 seconds and place answer in box.
Question 7 and 8: Find the voltage vout(t) and the current iout(t) for the circuit shown in Figure 4 with vin(t)=0fort<0andvin(t)=(t2 +t)Vfort≥0.Thecapacitorisunchargedfort<0.
7.) Find an expression for vout(t) with t ≥ 0 and place your answer in the box.
8.) Find an expression for iout(t) with t ≥ 0 and place your answer in the box.
Question 9 and 10: Find the voltage vs(t) and the current i1(t) for the circuit shown in Figure 5 with is(t)=0fort<0andis(t)=(t2 +t)Afort≥0.Theinductorsarenotmagnetizedfort<0.
9.) Find an expression for vs(t) with t ≥ 0 and place your answer in the box.
10.) Find an expression for i1(t) with t ≥ 0 and place your answer in the box.
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