Faraday is the unit of

When $10^{14}$ electrons are removed from a neutral metal sphere,what will be the electric charge on the sphere in $\mu C$?

The nature of binding for a crystal with $I$ (alternating) and evenly spaced positive and negative ions is:

Which of the following charges is possible?
$(a)\ 3.2 \times 10^{-20} C$ $(b)\ 3.2 \times 10^{-18} C$
$(c)\ 3 \times 10^{-19} C$ $(d)\ 6 \times 10^{-17} C$

Two identical conducting balls $A$ and $B$ have positive charges $q_{1}$ and $q_{2}$ respectively,where $q_{1} \neq q_{2}$. The balls are brought together so that they touch each other and then separated to their original positions. The force between them is

What is the charge on an electron?