Homework 32 ECE201 Linear Circuit Analysis Due in class Wednesday November 30 2011 Question 1 For the waveforms below write down the expressions of u1 t u2 t and u3 t Question 2 Use KVL to determine the phasor voltage Vx in the circuit below Question 3 For the circuits in the following figure compute the indicated phasor currents assuming R 2 and L 4 mH and C 1 mF If 500 rad sec determine the associated time function Question 4 Find the phasor currents IR IC IL and Iin and then determine iin t for the circuit of the following figure in which R 1 k L 0 5 H C 1 F and vin t 20 cos 1000t 60 V Question 5 The circuit below operates at 20 000 rad sec phasor voltage Vs 2 V Find the Thevenin equivalent circuit in the phasor domain at terminals A and B Use this Thevenin equivalent to find the magnitude of the phasor VAB when the 10 mH and 1 k series combination load is connected to A and B Question 6 For the network shown below a 20 ZL j10 ZC j10 R 10 and phasor Vs 20 V Find the phasor current Ix Question 7 The circuit below operates at 2 000 rad sec and gm 1 5 mS with phasor voltage Vs 100 V Find the Thevenin and Norton equivalent circuits seen at terminals A and B Question 8 Compute the frequency response of the circuit shown below where R 100 L 10 mH C 0 1 mF and Vout Iin is the transfer function Consider between 0 to 3000 rad sec Use MATLAB or other plotting software to generate the magnitude and phase in degrees plots Make sure that the horizontal axis is logarithmic R C L
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