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A 1-H inductance has
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Electrical Engineering: Principles & Applications (7th Edition)
- In the circuit depicted below, determine the voltage across the capacitor for t > 0. Your answer will be a function of t, using impulsive functions to represent discontinuities. 50 5 A 0.01 F 0.2 H 25 u(t) V Edit View Insert Format Tools Table 12pt v Paragraph v BIUA ...arrow_forwardAn LC circuit like the one in the Figure contains an 25.1-mH inductor and a 224-µF capacitor that initially carries a 212-μC charge. The switch is open for t < 0 and then thrown closed at t = 0. At t = 1.97-ms, find the current in the circuit (unit in mA). t C -ww- Larrow_forwardProblen the following: A. The voltage across the capacitor at the t = 0. B. The voltage across the capacitor for t > 0. C. The voltage across the 32K resistor for t > 0. Given RC circuit with a switch that moves from position A to B at time t =0 obtainarrow_forward
- 1.The switch in the following circuit has been open for a long time. At time t=0 the switch is closed. + V1 120 R1 5 R4 R2 10 R3 L1 100mH 15 5 Determine the current in the inductor as a function of time, and plot it.arrow_forwardThe switch S is closed at t = 0. Which statements about the following RL circuit are true? (Assume a DC source and that the inductors have no resistance.) Circle all answers that apply. L L R (A) Immediately after the switch is closed, the source sees an equivalent resistance of R/2. (B) Immediately after the switch is closed, the source sees an equivalent resistance of 2R. (C) Immediately after the switch is closed, the source sees an equivalent resistance of 3R/2. (D) At t = infinity after the switch is closed, the source sees an equivalent resistance of R. (E) At t = infinity after the switch is closed, the source sees an equivalent resistance of 2R. (F) At t = infinity after the switch is closed, the source sees an equivalent resistance of 3R/2.arrow_forwardQ1/ For the network shown in figure (Qı), the switch has been in position “a" for a long time. At t=0, the switch moves and stays at position "b". Determine an expression for the inductor current iL(t) when t20 using the general solution formula. 5sL Lielt) 122 a tzo 6052 lom k 72V 202arrow_forward
- The switch in the following circuit closes at t-0. If the capacitor is initially discharged, calculate the voltage on the capacitor at t-3s. (R-50KQ, C-33uF) 50 k2 15 V 33 jularrow_forwardThe two parallel inductors in the figure below are connected across the terminals of a black box at t = 0. The resulting voltage v for t > 0 is known to be 12e-V. It is also known that i₁(0) = 2A and i2(0) = 4A. - i1(t) L1 3 H i2(t) L2 6 H i(t) t=0 Black Box (a) Replace the original inductors with an euivalent inductor and find i(t) for t≥ 0. (b) Find i₁(t) for t≥ 0. (c) Find i2(t) for t≥ 0. (d) How much energy is delivered to the black box in the time interval 0 ≤ t ≤∞. (e) How much energy was initially stored in the the parallel inducutors? (f) How much energy is trapped in the ideal inductors? (g) Show that your solutions for i₁(t) and i2(t) agree with your answer in (f).arrow_forwardFor the circuit in Figure 3 the switch is in the left position for several minutes: (a) Find the Initlal voltage, V, on the capacitor just before the switch is flipped (b) Find an expression v(t) that describes the voltage across the 20 N resistor after the switch has been Figure 3 U 09 flipped to the right NOTE: Remember what we said in class: use a Circuit-Specific Equation to get a value you know. Then solve for whatever else the problem asks for +50 µF 380 0 20 2arrow_forward
- The energy on the inductor is initially (t<0) 0.1 microJoules and the switch S is turned ON at t=0 second. Find the current on inductor L at t= 1 microsecond. The inductor L is 1 mH. too s itinarrow_forwardFor the circuit below with switch U1 closing at time t=0 and the initial current in inductor L1 equal zero, find the transient response voltage across the resistor R1: (Provide your calculations and reasoning for your answer.) L1 U1 50mH 11 R2 1k R1 0.150Ado 15arrow_forward9) Switch S1 closes at t=0. What is the final voltage across the capacitor? What is the current through the capacitor at t=0? How long does it take the capacitor to reach it’s final voltage?arrow_forward
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