- Oil drops Hole in plate (+) Microscope view Source of X rays X-гay irradiation causes drops to pick up electrons (-) and become Electrically charged plates negatively charged. Cigure 2.5 Millikan's oil-drop experiment to measure the charge of the electron.
Millikan determined the charge on the electron by studying
the static charges on oil drops falling in an electric
field (Figure 2.5). A student carried out this experiment using
several oil drops for her measurements and calculated the
charges on the drops. She obtained the following data:
Droplet Calculated Charge (C)
A 1.60 x 10-19
B 3.15 x 10-19
C 4.81 x 10-19
D 6.31 x10-19
(a) What is the significance of the fact that the droplets carried
different charges? (b) What conclusion can the student
draw from these data regarding the charge of the electron?
(c) What value (and to how many significant figures) should
she report for the electronic charge?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
