R www +Vc- 35u(-t)V Assume R1 = 20, R2 = 30, and C = 0.33F. What...

 

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R₁ www +Vc- 35u(-t)V Assume R1 = 20, R2 = 30, and C = 0.33F. What is the steady-state value of VC (in V) for t < 0s? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Find the Thevenin equivalent of the circuit about the capacitor for t > 0. Assume the Thevenin equivalent voltage is defined so its negative terminal would be connected to the negative terminal of VC- What is RTH (in (2)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is VTH (in V)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is ic(0*) (in A), the capacitor current immediately after t = 0? Remember that by default, ic is assumed to be passive to VC. Hint: You have the Thevenin equivalent of the circuit, so use it to find ic instead of solving for ic in the original circuit... Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is vC(4s) (in V), the capacitor voltage at t = 4s? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is ic(4s) (in A), the capacitor current at t = 4s? 3u(t)A R₁ www +Vc- 35u(-t)V Assume R1 = 20, R2 = 30, and C = 0.33F. What is the steady-state value of VC (in V) for t < 0s? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% Find the Thevenin equivalent of the circuit about the capacitor for t > 0. Assume the Thevenin equivalent voltage is defined so its negative terminal would be connected to the negative terminal of VC- What is RTH (in (2)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is VTH (in V)? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is ic(0*) (in A), the capacitor current immediately after t = 0? Remember that by default, ic is assumed to be passive to VC. Hint: You have the Thevenin equivalent of the circuit, so use it to find ic instead of solving for ic in the original circuit... Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is vC(4s) (in V), the capacitor voltage at t = 4s? Points possible: 1 Allowed attempts: 3 Retry penalty: 33.333% What is ic(4s) (in A), the capacitor current at t = 4s? 3u(t)A

Answer rating: 100% (QA)

t 0 Capacitor acts as short ci... View the full answer