P4.64. Consider the circuit shown in Figure P4.64 in which the switch has been open for a long time prior to t=0 and we

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P4 64 Consider The Circuit Shown In Figure P4 64 In Which The Switch Has Been Open For A Long Time Prior To T 0 And We 1 (79.91 KiB) Viewed 34 times

P4.64. Consider the circuit shown in Figure P4.64 in which the switch has been open for a long time prior to t=0 and we are given R=25. a. Compute the undamped resonant frequency, the damping coefficient, and the damping ratio of the circuit after the switch closes. b. Assume that the capacitor is initially charged by a 25-V dc source not shown in the figure, so we have v( 0+ )=25 V. Determine the values of i L (0+) and V'( 0+). C. Find the particular solution for v(t). d. Find the general solution for v(t), including the numerical values of all parameters. IA R w w llll (1) L = 10 xH C = 1000 pF Figure P4.64 P4.65. Repeat Problem P4.64 for R=50 .