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Unformatted text preview: indicating their angles Question # 2 For the circuit shown below the switch has been open for long time before closing at t=0. For t < 0, find i L of the inductor = 20 mA and V c = 0 V of the capacitor a) Redraw the circuit at t= 0 + as a parallel RLC circuit step response form. b) Find i L (0 + ), di L (0+)/dt and the final value of the i L c) Find the neper frequency and the resonant frequency d) Calculate S 1,2 for the characteristic equation and specify the type of damping. e) Find i L (t) for t ≥ 0 Question # 3 For the circuit shown below (R a = 50 K Ω , C 1 = 0.1 µ F, R b = 100 K Ω , C 2 = 1 µ F, V cc1 = 9 V, V cc2 = 9 V, V o (0)= 0 V, V o1 (0)= 0 V, V g = 200 mV) a) Write the second order differential equation that describe the relation between the output voltage and the input source voltage b) Find V o (t) for t ≥ 0. c) How long does the circuit take to saturate. d) Does the first integrator saturate when the second saturates?...
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This note was uploaded on 01/16/2010 for the course EE ee205 taught by Professor Profsyed during the Spring '09 term at King Fahd University of Petroleum & Minerals.
 Spring '09
 profsyed
 Electrical Engineering

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