Physics

Problem

A neutral aluminum ball is to be given a net charge of

+4.0\,\mu\text{C}

by removing electrons. Approximately how many electrons must be removed? (Use

e = 1.6\times10^{-19}\,\text{C}

.) a)

1.6\times10^{13}

2.5\times10^{13}

6.3\times10^{12}

2.5\times10^{16}