Transcript Millikan`s Oil Drop Experiment

Millikan’s Oil
Drop
Experiment
What is the charge on
a single electron?
Apparatus
Forces
Eq
mg
Floating:
Eq = mg
q = mg/E
Trial 1
q = 1.2 C
+
-
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-
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- - - - -
Trial 2
q = 2.4 C
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-
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- - - - -
Trial 3
q = 4.8 C
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-
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-
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- - - - -
Trial 4
q = 7.2 C
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-
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- - - - -
Results
Trial 1
Trial 2
Trial 3
Trial 4
Common
1.2 C
2.4 C
4.8 C
7.2 C
1.2 C
Charge on an Electron
1.6 x
-19
10
C