Electric Circuits, 9th Edition P80

Electric Circuits, 9th Edition P80. Designed for use in a one or two-semester Introductory Circuit Analysis or Circuit Theory Course taught in Electrical or Computer Engineering Departments. Electric Circuits 9/e is the most widely used introductory circuits textbook of the past 25 years. As this book has evolved over the years to meet the changing learning styles of students, importantly, the underlying teaching approaches and philosophies remain unchanged. | 766 Answers to Selected Problems a z 385 mA so a warning sign should be posted and precautions taken. b Use the following resistors 390 11 47 11 and 220 il. a Parm W Pleg W trunk 7-40 W b Unn s ileg s Orunk s c All values are much greater than a few minutes. a 40V b No 12 V 800 il 15 mA will cause a shock. 3000 V Chapter 3 a 6 kil and 12 kil 9 kil and 7 kil simplified circuit is 1811 -------TA------- ---------- lOvQ 4Í1 16íi b 3 kil 5 kil and 7 kil simplified circuit is 4 kil ------w-------- -------- 3mA æ 10 kil 15 kil c 300 il 400 fl and 500 il simplified circuit is 1200 il --------VA------- ---------- 200 mV 600 il S kil a 10 il and 40il 100Í1 and 25 fl simplified circuit is 18 il 8 il -------VA------- 60 VCD 20 5 22 5 b 9 kil and 18 kil and 6 kil simplified circuit is 5 kil ---------- -----va-----1 2 kil 50mA æ IOkíl 3 kill c 600 il. 200 il and 300 il simplified circuit is 250 il -------------T------------ A æ loonà 150íl a il b 10 kil c 1600 il a 30 fl b 5 kil c 80 il a 66 V b W W c 17 672 il. 12 408 il a 120011 30011 b 1W 187511 kil. 15 kfl a 36 V b 2 A c A d 24 V e V a 25 mA b 250 V c 50 V d 25 mA e Answers to Selected Problems 767 a ft a 8 b 4980 ft b 3 c 230 ft c 4 d 5ft d Avoid the topmost mesh and the leftmost a R 50ft mesh which both contain current sources. . _ 25 12 1 . Z 50 25 12 Zmeas 25Zmeas b 2500Zmcas a 2 b 5 c 7 d 1 4 7 c Yes a 5 a 1500ft b mA c 750 ft mW d 1000 ft mW b 3 c Zg z i2 0 z 4 3 0 z5 - z2 - z3 0 d 2 V 21 V e Rp i R z R2 0 a A-connected R2 R2 R4 becomes Y-connected R3Z3 R5Z5 R4Z4 0 5ft 20ft 4ft equivalent resistance is 33ft. 120 V 96 V b Y-connected R2 R4 Rs becomes A-connected 100 ft 80 ft 20 ft equivalent resistance 4V is 33 ft c Convert the delta connection R4 R5 R to a A A A

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