Purdue
ECE 20100 -
HW33 (3)
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ECE 201 Spring 2010 Homework 33 Solutions Problem 30 a 1 1 R j L j0 25 0 05 1 Zin j Yin j j20 5 j Yin j b Iin Zin j j L 10 i j 10 j20 j 4 5 2e IL iL t 10 cos 5t 4 mA Problem 40 Let the impedances of R1 C and R2 L combinations be Z1 and Z2 respectively 1 j 400 5 10 6 500 250 1 j Z1 Z2 1 1 100 j 400 0 125 20 1 2j 1 1 1 Let the phasor current through the source be I I VC vC t IL iL t V 270 j210 I 250 1 j 120 1 0256 j0 1282 2 124 032 cos 400t 7 125 V R2 V 270 j210 R2 j L V 100 270 j210 100 j50 240 0 00128205 j0 0002564 2 0 3138 cos 400t 11 3099 A 2
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