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DAY 25

DAY 25. Electric Fields. What is an Electric Field? Who cares?. Slide 20-34. What is an Electric Field? Who cares?. Slide 20-34. Constructing the Electric Field. Slide 20-34. Constructing the Electric Field. Slide 20-34. Constructing the Electric Field. Slide 20-34.

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DAY 25

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  1. DAY 25 Electric Fields

  2. What is an Electric Field? Who cares? Slide 20-34

  3. What is an Electric Field? Who cares? Slide 20-34

  4. Constructing the Electric Field Slide 20-34

  5. Constructing the Electric Field Slide 20-34

  6. Constructing the Electric Field Slide 20-34

  7. The Electric Field of a Point Charge Slide 20-35

  8. The Electric Field model Slide 20-34

  9. Superposition of Electric fields Slide 20-34

  10. Example Problem Determine the magnitude and the direction of the electric field at point A. Slide 20-70

  11. Dipole Electric Fields Field lines Slide 20-45

  12. Electric Field Lines Slide 20-50

  13. Uniform Electric Fields Slide 20-45

  14. Cathode ray tube Slide 20-55

  15. Examples The CRT (cathode ray tube) needs the electrons to exit with speed 6E7 m/s. What electric field strength is necessary? b. A uniform electric field of 1.5E5 N/C is used to deflect the beam. What angle? Slide 20-55

  16. Conductors and Electric Fields Slide 20-55

  17. Conductors and Electric Fields A positively charged (non-metallic) sphere is places over a metal plate with a net negative charge. Slide 20-55

  18. Conductors and Electric Fields A positively charged (non-metallic) sphere is places over a metal plate with a net negative charge. Slide 20-55

  19. Forces and Torques on Charges in Electric Fields Slide 20-56

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