Millikan's Oil Drop Experiment - doleweb.ppt

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					Millikan’s Oil
     Drop
Experiment
What is the charge on
 a single electron?
Apparatus
     Forces

Eq     Floating:
       Eq = mg
mg
       q = mg/E
Trial 1

                             q = 1.2 C

    +       + +      +   +   + +      +   +   +


-       -    -   -   - -     -   -   - - - - -
                         Trial 2

                             q = 2.4 C

    +       + +      +   +   + +      +   +   +


-       -    -   -   - -     -   -   - - - - -
                         Trial 3

                             q = 4.8 C

    +       + +      +   +   + +      +   +   +


-       -    -   -   - -     -   -   - - - - -
                         Trial 4

                             q = 7.2 C

    +       + +      +   +   + +      +   +   +


-       -    -   -   - -     -   -   - - - - -
     Results
Trial 1    1.2 C
Trial 2    2.4 C
Trial 3    4.8 C
Trial 4    7.2 C

Common     1.2 C
Charge on an Electron


             -19
     1.6 x 10      C

				
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posted:1/21/2014
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