1. e/m Ratio for the Electron
Physics I Class 24
e/m Ratio for the Electron

2. Joseph John (“J.J.”) Thomson

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

4. Magnetic Force on a Moving Charge (Review)

5. The Radius of the Circle (Review)

6. Apparatus for Measuring e/m

7. The Cathode Ray Tube

8. Analysis of Electron Acceleration

9. Helmholtz Coils

10. Derivation of e/m Formula

11. Experimental Procedure

12. Viewing the Electron Path

13. A Similar Application -- Mass Spectrometer

14. Basic Operation of a Magnetic Sector Mass Spectrometer

15. Mass Spectrometer Diagram

16. Class #24 Take-Away Concepts

17. Activity #24 Measuring e/m for the Electron

18. Optional Material for Class #24

19. Robert Andrews Millikan

20. Analysis of Oil Drop Experiment