PHY241_Lab4

PHY241_Lab4 - Acceleration of Electrons In A Cathode Ray...

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Acceleration of Electrons In A Cathode Ray Tube By Alex Chambers Lab Preformed: 23 September 2008 Report Submitted: 30 September 2008 Goals: The goal of this experiment was to study the movement of electrons within an electric field. This was done specifically by using a cathode ray tube.
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Theory: A cathode ray tube works by first receiving an electrical signal to a filament tube. The filament is heated and shoots electrons off into the cathode ray tube. At the filament, electrons are being shot in all directions. To focus the electrons to some specific point, the cathode ray tube uses deflection plates to guide the electrons down the length of the tube. The deflection plates are two pieces of metal that are oppositely charged, creating an electric field between them. As the electron passes through the deflection plate, its course is altered as it is attracted to the positive side of the deflection plates. The means that the electron exits a deflection plate at a different speed and on a different trajectory than when it entered. Because all this is happening inside the
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PHY241_Lab4 - Acceleration of Electrons In A Cathode Ray...

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