Assume that steady-state conditions exist in the circuit shown in Figure P5.27 for
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Principles and Applications of Electrical Engineering
- 7 Steady-state conditions exist in the circuit shown in Figure P5.27 at t < 0. The switch is closed at t = 0. V = 12 V R = 0.68 k2 R = 2.2 k2 R = 1.8 k2 C= 0.47 µF Determine the current through the capacitor at t = 0+, just after the switch is closed. ww. idt) R. t= 0 R1 Ry ww-arrow_forward4 If the switch in the circuit shown in Figure P5.64 is closed at t = 0 and Vs = 12 V C = 130 µF R = 2.3 k2 R, = 7 k2 L= 30 mH determine the current through the inductor and the voltage across the capacitor and across Rị after the circuit has returned to a steady state. t= 0 R1 Vs R2arrow_forward8 For t > 0, the circuit shown in Figure P5.22 is at steady state. The switch is changed as shown at t = 0. Vsi = 35 V C = 11 µF Vsz = 130 V R = 17 k2 R = 7 k2 R = 23 k2 Determine the time constant of the circuit for t> 0.arrow_forward
- Given circuit below, use superposition to find voltage across the capacitor, vclt). Frequency is 100 Hz. 6kn 4kn reee zkn O SmA <45 Vc (t) DC a) Given circuit below and switch ciosed for long time, what is the value of Vc? 5mA 3 luk bị At0, switch is opened. Write a mathematical expression for Velt) after opening of the switch. Evaluate this voltage at te10 ms. Attach File Browse Local Fies rowie Conent Cotection 74°Farrow_forward1 Just before the switch is opened at t = 0 in Figure P5.21, the current through the inductor is 1.70 mA in the direction shown. Vs = 12 V L = 0.9 mH R = 6 k2 R2 = 6 k2 R = 3 k2 Determine the time constant of the circuit for t > 0.arrow_forwardThe equation of the charge on the capacitor at any time t for an LRC series circuits is givenas a) Assume there is no initial charge and current, sketch the graph of the charge. b) What happen to the charge after a long time? c) State the transient and the steady state terms.arrow_forward
- Determine the initial and final conditions for thecircuit of Figure P5.52arrow_forwardConsider the R-C circuit. we idealise the emf to be constant and have zero internal resistance. We begin with capacitor initially uncharged. At initial time t=0, the switch was closed. Answer the questions attached.arrow_forward9 At t 0.arrow_forward
- Support that there. Icincuit Esithu an reasistanee on the and capacitance of /4 F. The EMF is ) 4 Cos 2t , The initial is an RC Cnerat current. The alternating cincuit is '/ 2 L Elt) the cincuit is qu(0) = 1V. Find the charge on the cincuit after t seconds. charge onarrow_forward6 At t< 0, the circuit shown in Figure P5.66 is at steady state, and the voltage across the capacitor is +7 V. The switch is changed as shown at t= 0, and Vs = 12 V C= 3,300 µF R = 9.1 k2 R = 4.3 k2 R3 = 4.3 k2 L= 16 mH Determine the initial voltage across R2 just after the switch is changed. t=0 Le )V½ R R 2 R3 ww-arrow_forwardDetermine the initial and final conditions for thecircuit of Figure P5.21.arrow_forward
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