1. (Electrostatics) .6 (Physics) SRINARONG SURIN ACADEMY CENTER [SAC]

2. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______1________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__] 2 TECHNIC 1 : 1. 3. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______2________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__] A B A 2. () 3. Ex 4. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______3________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__] . . . . 4 A B C D A B, B C, C D . A C, B D . A C, B D. A B, B D . A C, B D . . . . . . . . . . . . . . . A B C . A B . A B . A B . A B ExExExExExEx 5. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______4________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]1. 3 2. A 1.0 x 105 3 1 A TECHNIC 2 : 2 1 22kQ QFr F = ()K = = 9 x 109N.m2/c2q1 , q2 = 1 2 ()r = ()q1 = +5.0 x 105Cq2 = 2.0 x 105C3 6. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______5________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]3. 27 3 4. 2 5. 2 8 . 2 3 6. P Q 4x10-8C 9x10-8C 0.6 P 0.18 F (/2) 7. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______6________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]7. 2 4 -6 d . 12 d/2 . 8. -3x10-4C, +2x10-3C +4x10-4C A, B C +2x10-3C 9. A, B 1/10 .. 30 3 g = 10 /210. 2.0x10-9, -3.0x10-9, 4.0x10-9, -1.0x10-9C A, B, C, D B 8. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______7________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]11. 2 3 1x1015 12. 2 3 5 x 101413. B q = ne n = e = 1 = 1.6 x 1019 9. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______8________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]14. B15. B16. q1 q2 q3 x q1 = 1 (x = 0) q2 x = 2 q3 = 4 q2 q2 q3 q1 10. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______9________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]17. +2x103 . A TECHNIC 3 : (E) 2kQEr E = (N/C , V/m)k = 9 x 109N. m2/ C2q = (C)r = (m) 11. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______10________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]18. 4x103 . A 19. X 20. q1 = 2 q2 = 2 6 2 N/C 21. X 12. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______11________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]22. q1, q2 0.1 . q2 4.8x104V/m q1, q223. +9 X = 0 +4 X = 1 +9 24. +9Q (0,0) 4Q x = 1 y = 0 x 1. 2. 2 3. 4. 5. 13. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______12________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]25. 2 26. 2 27. A 5 x 109 3 ) . A /) 1 A 1 1.6 x 1019 )F qE F = (N)q = (C)E = (N/C , V/m) 14. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______13________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]28. 1.67 x 1027 1.6 x 1019 2 x 1022TECHNIC 4 : 1 (Infinity) . kQVr V = ()k = 9 x 109N. m2/ C2Q = ()r = ()1. +, (Q) 2. 2 1WV Vq V1 = ()V2 = ()W = ()q = () 15. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______14________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]29. Q 2 x 109. A. B. 2 B A 30. A B 4 x 106 2 12 4 A B 31. 4 x 1010C A 1 2 x 1012C A 32. 2 x 104 infinity 5 x 102 16. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______15________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]33. X 34. 0.2 5 x 106, 3 x 106, 4 x 106 2 x 106 35. A, B C 5 x 107, 2 x 107 1.5 x 107 BD D 17. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______16________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]36. Q1 = +0.5 C AB = 10 cm BC = 30 cm ABC = 90o 1 B +28.8x109 Q2 TECHNIC 5 : 1 2kQEr R = 2 E = 0V = V 18. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______17________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]37. 1 5x109C . 2 . . 0.2 38. 20 10000 39. 0.30 106 3x105 0.2 19. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______18________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]40. q Q TECHNIC 5 : - VEd E = (N/C , V/m)V = ()d = () 20. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______19________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]41. 1 - 1.5 42. A B . A B. B A. A B. A B43. 3 9 44. 5 20 V/m 21. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______20________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]45. A B 46. 2 x 106 A B 8 / V = Ed1. E d () d E ; V = 0 d E d E 2. d E d d E d 22. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______21________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]47. 10 48. 60 3 x 105 TECHNIC 6 : C = ()a = K = 9x109N. m2/c2Q = ()V = () 23. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______22________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]49. 0.2 250 50. 0.1 9 3 N/C C = ()Q = ()V = () 24. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______23________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]51. 2 2 V52. 16 0.5 53. 2 100 V U = () 25. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______24________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]54. . C. Q1 Q2. V1 V2. VTECHNIC 7 : 26. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______25________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]55. C Q56. . C. V. V1 V2. Q1 Q2 27. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______26________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]57. 58. C1 , C2 C3 59. A B 2 28. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______27________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]60. 12 3 6 61. C1 62. 40 C1 , C2 C3 C1 29. - (Electrostatics) - 6SRINARONG SURIN ACADEMY CENTER _______28________ WORRACHET BOONYONG[__"Imagination is more important than knowledge"__]63. a Q 2 a +4Q a 64. 50 16 30 30 ( ) ( ) 1) 2) (Q) = (Q)