Robert Millikan
Where is Robert Millikan from?
The United States
What liquid did Millikan use?
Oil
What materials did we use?
Ping pong balls and a hairdryer
Who determined the charge of the electron before Millikan?
JJ Thompson
What did Millikan figure out?
What charge was the top plate?
Positive
What was the constant in our experiment?
Force of the hair dryer
Why did Millikan conduct the experiment if Thompson already did?
To double-check Thompsons work
What charge was the bottom plate?
Negative
Why can we trust the charge of the electron?
Because both Thompson and Millikan came to the same conclusion