Chapter 2, Problem 4SAQ

A student re-creates the Millikan oil drop experiment and tabulates the relative charges of the oil drops in terms of a constant, $\alpha$ .

Drop #1	$\alpha$
Drop #2	$\frac{3}{2}\alpha$
Drop #3	$\frac{5}{2}\alpha$
Drop #4	$3\alpha$

What charge for the electron (in terms of a) is consistent with these data?
a. $\frac{1}{2}\alpha$

b. $\alpha$

c. $\frac{3}{2}\alpha$

d. $\alpha$