A small oil drop of mass `10^(-6)kg` is hanging in at rest between two plates separated by1 mm having a potential difference of 500V. The charge on the drop is ____ `(g = 10 ms^(-2))`

Options

A. `2xx10^(-9)` C
B. `2xx10^(11)` C
C. `2xx10^(-6)` C
D. `2xx10^(-8)`C

Answer

B