Lab 2 - z 4. Results-See lab notes for result tables and...

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Matt Karam PHYS 214- 10 February 7, 2008 And don’t forget… LASERS!… but not really… 1. Goals: Explore how charged parallel plates can accelerate and deflect charged particles. D x =gV x /V z id the deflection equation, this will be tested in three ways, which will provide experimental support for the equation. 2. Theory: a. The electrons are accelerated at the screen, they pass through the deflection plates which are charged so they deflect the electrons based on the charge present in the plates and time the electrons spend in the electric field. b. The deflection equation is based on the time spent within the field and the strength of the field. If the time is decreased by a faster speed then the deflection is less. If the field strength is increased then the deflection will increase. 3. Procedure 1. cause a deflection onscreen using V x as the changing factor. Measured D x 2. cause a deflection onscreen using V y as the changing factor. Measured D y 3. Trace V z vs D y mark deflection as V y changes. Graph D y vs 1/V
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Unformatted text preview: z 4. Results-See lab notes for result tables and graphs 5. Problems: work is on attached page with problems. a. 8.386*10 6 m/s b. V y = 14,066 m/s c. 45/4 m/s 2 d. People dont see very quickly, so if you can manipulate the dot to move very, very quickly by rapidly changing deflection charges you can create a moving image. e. There would be a line on the x axis. Then there would be a diagonal line. To make a circle you would have to have the x and y inputs out of phase by half a cycle so positive on one is negative on the other, then there would be a circle. 6. Discussion: So there are plates and they deflect the charged particle by creating a field effect force that accelerates the particle in a direction correlating to the field. Error analysis: basically we found out that our numbers were off by about a factor of 10, the graphs based on our experimental results were horribly inaccurate, or maybe accurate? Our mean slope ended up being .02meters....
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This note was uploaded on 04/10/2008 for the course PHYS 241 taught by Professor Milsom during the Spring '08 term at University of Arizona- Tucson.

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