lab report 5 - 11/30/09 Lab report #5 (5.8) MAGNETIC FORCE...

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Unformatted text preview: 11/30/09 Lab report #5 (5.8) MAGNETIC FORCE ON A MOVING CHARGE 1 Abstract We want to see the behavior of a moving beam of electrons. In order to control the beam of electrons, we decide to use a magnetic field. For our study of electron control we decide to use a Cathode Ray Tube (CRT) with a magnetic field perpendicular to its axis. From previous work with Helmholtz coils, we know that the magnetic field between these parallel coils is fairly uniform, so we decide to use them for our test. We need to determine how the magnitude of a constant magnetic field affects the position of the beam spot. Setup of experiment We check to see that the connection from the power supply to the high voltage accelerating plates and the filament heater of the CRT are correct. Then we turn the power supply on. We make sure to have between 250 and 500 between the cathode and the anode. Predictions The equation given in class for calculating the magnetic field for any current is: 2 3 3 2 2 2 2 2 2 1 1 [ ] 2...
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lab report 5 - 11/30/09 Lab report #5 (5.8) MAGNETIC FORCE...

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