AQA, Turning points, Optional unit, Discovery of the electron, discharge tube, cathode ray tube, Electrons in electric and magnetic field, cross-field set up, velocity selector, Millikan's oil drop experiment, Stokes' law , specific charge of an electron
0:00 - Discharge tube
0:45 - Negative Glow
1:30 - Positive Column
2:08 - Direction and Momentum of the cathode ray
2:43 - Straight paths of cathode ray
3:00 - Charge of cathode rays
3:30 - Questions
3:35 - Answers .
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