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Unformatted text preview: EE110 HW2 Due date: Jan 31, Thursday, 5 PM. 1. PSPICE problem: In HW 1, Q1a you calculated Req of the repeating network. Now try to verify this Req through simulation. Simulate the network in SPICE and calculate the Req with one stage (Req=2R), 3 stages, 5 stages, 7 stages. Plot the Req w.r.t number of stages. Does it seem to be converging to a value? Is it the value you computed in HW1? For this problem, assume R = 10 ohms. b 5 points 2. A 22 aF capacitance is connected in parallel with a 1 fH inductance. What value of resistance connected in parallel will lead to ( a ) an underdamped response; ( b ) a critically damped response; ( c ) an overdamped response? (Note: a=10-18 , f=10-15 ) b 6 points 3. The capacitor current in the circuit of Fig. below is i C = 40 e- 100 t 30 e-200 t mA. If C = 1 mF and v ( ) = 0.5 V, find ( a ) v ( t ) ; ( b ) i R ( t ) ; ( c ) i ( t ) . b 5 points C R L v + &#13; i i R i C 4. For the circuit of Fig. below, the value of the inductance is 1250 mH. Determine v ( t ) if it is known that the capacitor initially stores 390 J of energy and the inductor initially stores zero...
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- Spring '09