Chapter 2, Problem 5ST

The charge on a single electron is

1. $\text{6}\text{.25}\times {\text{10}}^{\text{-18}}\text{ C}$
2. $\text{1}\text{.6}\times {\text{10}}^{\text{-19}}\text{ C}$
3. $\text{1}\text{.6}\times {\text{10}}^{\text{-19}}\text{ J}$
4. $\text{3}\text{.14}\times {\text{10}}^{\text{-6}}\text{ C}$