Electromagnetic Field Theory: A Problem Solving Approach Part 74. Electromagnetic field theory is often the least popular course in the electrical engineering curriculum. Heavy reliance on vector and integral calculus can obscure physical phenomena so that the student becomes bogged down in the mathematics and loses sight of the applications. This book instills problem solving confidence by teaching through the use of a large number of worked problems. To keep the subject exciting, many of these problems are based on physical processes, devices, and models. This text is an introductory treatment on the junior level for a two-semester electrical engineering. | Solutions to Selected Problems 705 23. 27. a 2nd X1 À2 34. a j. 2-Ml M1 M2 -Mo. 2 lx Moa . . . -g cos pir sin pt j 35. a 36. a Wt x -- x-d Da fx 2 p Ho HIDs L Z 1 b x -z o b fx n0M0DslH0 M0 H Chapter 6 D 1. a Af 0 P-Vp2-fl2 3. d e v t v0 sin ßt cos ßt e 2 ß 2 ÎHVoWo . ö. -at 2 l t D LO Sm te o ob p Bobs I CM 4. a M In p Ai n0N R -J R - a2 2ir b n . f 3no IdS 2 C x 1-1 R- 8. a Hz K t b K t K0 ----2 x0_ Vt . rad dB 9 mrda dB C P W 10. L MoAr2 -Vè2-az A z V2 i2 22Vi 14- a rrwrr m 16. a q jj n p-n- 706 Solutions to Selected Problems 17. b c EMF - ln 2ir Ri . rl r Mo 7Vo 7 2 d EMF --------------In 2tt Ri 18. a H O B b voc - b2 -a2 20. b V ----- lotrND Rr Rf 21. a o -------- O 4L b Ccrit 2 OCcrit C Ccrit ac rsr 4 Rf til r i Æf-Gû i2 i1 2 c T- J 22. b Hz x t E -yr sin c n i mrl d n odd 4H0 TITTX 23. c Hy x t Ho- --------sin -e a n i mr a n odd 25. b Hz y t -K0 n 0 -l n4Xp rr 2n -I-1 T 2n 1 Try cos ---------- e L 2D J l i v S - l ï s d Hz y - i i D s 26. a Hz x - 2 R x - l eR 1 e m 27. a Hz x Ko e 0x eR-xl21- ß yj 1 1 lx mO 28. a Solutions to Selected Problems 707 29. a 32. b 33. a T LiZocos2a oi sin 29 34. c T Mohl2 cos 0 f 0 t 0o cos ßtsin e atts a k i r t P 0 i b r I 35. a L x -In- b fx ln- 2ir a 4ir a 2 . b I ln- 37. A - 775 57 4tt Pmg b -a Chapter 7 4. b W 4 PsEc p0MsHc 9. b jvojo sin kd e F o l coe 7io sin kd jri cos kd JoV cos kz . we rjo sin kd j-rj cos kd z d z d z d 10. b E Eoe e az 2 11. a ti -i2 -2 z2-zi . Co b t i -t 2 y ti-t2 c z 2-z t yL 12. a u uz-v wx y V1 - v c0 2 Q m ft -VUtlCo 1-VU Co 2 1 4-I CUo J 2r 2 - 16. c fes l-- l C L û cüTû 0 J 20. a E Eo cos û î cos no 2 2 1 22. a k x sp a k
