1. ELECTRIC FIELDS

5. Charged wire in oil. Floating threads show the field

12. Gravity Field Electric Field mass m charge +q force F force F h d Energy Changes in Fields

14. cathode anode filament

15. Kinetic energy gained by the electron is

16. LHC Cern circumference = 27 km depth= 100 m

17. Proton Tube

18. Particle Detector

21. an easier way to measure electric field strength……

22. excellence question 5000 V 20 mm Calculate the electron’s energy gain.

23. excellence question for 2.7 5000 V 20 mm Calculate the electron’s velocity as it passes through the hole.

24. Cathode Ray Tubes

26. Cathode Ray Tube

27. With switch open … With switch closed …

28. The downward force is constant so the path of the electron is a parabola