q = mgr

V

Here are some results:

mass (kg) voltage (V) distance (m)

3.2X10^-15 140.0 0.005

2.4X10^-15 147.0 0.005

1.9X10^-15 290.9 0.005

4.2X10^-15 214.4 0.005

i used the above equation to find the charge on each oil drop. Then what do i do?

P.S. I'm only in grade 12, and i only the basics of this topic. Please don't use crazy 4th year advanced physics.

Thanx a lot