1 / 45

Magnetic force on currents

F. F. P.62. Magnetic force on currents. N. N. I. I. S. S. P.62. Fleming’s left-hand rule. P.62. Magnetic field becomes stronger on the top. Neutral point. Magnetic field becomes smaller at the bottom. P.62. To have greater induced magnetic force:. Increase current.

claudia-rivera
Télécharger la présentation

Magnetic force on currents

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. F F P.62 Magnetic force on currents N N I I S S

  2. P.62 Fleming’s left-hand rule

  3. P.62 Magnetic field becomes stronger on the top Neutral point Magnetic field becomes smaller at the bottom

  4. P.62 To have greater induced magnetic force: Increase current Stronger magnetic field

  5. P.63

  6. I N S N S P.63

  7. F F P.63 Conducting wire with a permanent magnet N N I I S S

  8. F F x x x x x I I x x x x x F F . . . . . . . . . . x x x x x . . . . . . . . . . I I x x x x x P.62

  9. P.63

  10. . x . x . F1 x I1 I2 P.63

  11. . x . x . F2 x I1 I2 P.63

  12. . x . x . F1 x I1 I2 P.63

  13. . x . x . F2 x I1 I2 P.63

  14. P.63 Attractive force Repulsive force

  15. P.63

  16. P.63 N N F F v v I S S

  17. P.63 Aurora

  18. P.64

  19. P.64 The rod moves to LHS.

  20. P.64 The rod moves to RHS.

  21. P.64 No current on metal rod. The rod remains at rest.

  22. P.65 X : North, Y : South Out of the paper More magnetic field lines The force is reversed in direction No change in direction

  23. P.65

  24. P.62

  25. P.66

  26. P.66

  27. P.66

  28. P.66 0 0 0 Anticlockwise 0 0 0 Clockwise

  29. F -F P.67 A couple is formed D.c. motor Commutator rotates with the coil

  30. P.67 Current flows from A to B

  31. P.67

  32. P.68 Use a stronger magnet Use larger current Motor can be more powerful Increase number of turns per unit length of coil Use soft-iron core

  33. . F . x -F x P.68 Couple is constant

  34. . . N S . x x x P.68 Large number of turns of wire Several coils Soft-iron core Increase power & run more smoothly

  35. Sound wave P.68 Loudspeaker

  36. P.68 Solenoid Circular magnet Paper cone

  37. N N N S N N N N N P.68

  38. P.68

  39. P.70

  40. P.70

  41. P.71

  42. P.71

  43. P.71

  44. P.71

  45. P.71

More Related