Purdue
ECE 20100 -
HW3 (2)
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Homework 3 Prob 1 19 a 2 575 0 8 2 06 800 2 575 b From table 1 2 200 feet of 14 gauge nickel wire has resistance 5 1 2 575 200 5 1 2 575 0 001 200 2 6265 1000 c 2 06 2 6265 4 6865 Prob 1 22 a 400 sin 20 t 1 28 1034 2 5 0 16 sin 20 t 8 5 6 20 t W 1 4 p t instantaneous power 1 2 1 0 8 0 6 0 4 0 2 0 0 0 05 0 1 0 15 t 0 0 0001 0 5 p 1 28 sin 20 pi t 2 plot t p grid xlabel t time ylabel p t instantaneous power 0 2 0 25 t time 0 3 0 35 0 4 0 45 0 5 Prob 1 27 a 89 b 120 120 240 60 89 2 2 2 120 120 192 150 Prob 1 37
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