If the charge on an object is measured as 4.0 x 10-18C, how many excess electrons does the object possess, given that the charge of an electron is 1.6 x 10-18C
-
A.
18 -
B.
19 -
C.
25 -
D.
37
Correct Answer: Option C
Explanation
(frac{4 times 10^{-18}}{1.6 times 10^{-19}} = 25)