Difference: MillikanLab (6 vs. 7)

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-- JorgeRodriguez - 2012-01-09

Lab Assignment: Millikan Oil Drop Experiment

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The goal in this lab is simply the determination of the value of the electric charge q_e. Using the Pasco AP-821A apparatus. The procedure for doing this is well described by the Pasco manual linked below. Be sure you read that thoroughly before you begin to take data.

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The goal in this lab is simply to determine the value of the electric charge q_e employing Millikan's method. You'll have the Pasco AP-821A apparatus to help you though so it shouldn't take yoy as long.The procedure for doing this is well described by the Pasco manual linked below. Be sure you read that thoroughly before you begin to take data.

Some useful information and hints

Read through the entire experimental procedures outlined in the manual and pay particular attention to how to analyze the data. It is a particularly nuanced process by which you can extract the value of e without knowing the number of charges deposited on oil drops. Also you may avail yourself of the excellent write up in Mellisinos and Napolitano and of course google can help you find many student papers online. If you do find useful sources on the web make sure cite them in your bibliography.
This lab requires a lot of patience and careful observations of very small objects that appear through the microscope. The charged droplets are tiny and thus are influenced significantly by the ambient environment in ways you'll have to figure out how to control. Its good practice to have plan when you start your data taking. The manual provides you with useful hints but you will have to think up things to help on your own.

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