2. Refracted Images Lecture 25 Thursday: 15 April 2004

15. A Similar Application -- Mass Spectrometer

16. Mass Spectrometer Diagram

17. Basic Operation of a Magnetic Sector Mass Spectrometer

18. Class #25 Take-Away Concepts

19. Optional Material for Class #25

20. Robert Andrews Millikan

21. Analysis of Oil Drop Experiment

23. Physical Principles of Design Activity for Class 24 Monday: 12 April 2004 “e/m Ratio for the Electron” J.J.Thomson-Experiment

24. Joseph John (“J.J.”) Thomson

25. Calculating Change in K.E. from Electric Potential (Review)

26. Magnetic Force on a Moving Charge (Review)

27. The Radius of the Circle (Review)

28. Apparatus for Measuring e/m

29. The Cathode Ray Tube

30. Analysis of Electron Acceleration

31. Helmholtz Coils

32. Derivation of e/m Formula

33. Experimental Procedure

34. Viewing the Electron Path

35. Activity #25 Measuring e/m for the Electron