Question

(Electron Charge) What charge does a balloon have if it has lost 9.4E12 electrons?

Answer 1

One coulomb (C) of charge represents an excess or deficit of 6.24 x 10¹⁸ electrons, therefore:

`\begin{gathered} (9.4)/(6.24*10^(18))=1.5*10^(-18) \\ \\ Since_{\text{ }}it_{\text{ }}has_{\text{ }}lost_{\text{ }}electrons: \\ \\ +1.5*10^(-18) \end{gathered}`

Answer:

+1.5x10⁻¹⁸ C