In an oil drop experiment, (HELP PLEASE) a drop with a weight of 2.0x10^-14 N was suspended motionless when the potential difference between the plates that were 63 mm apart was 0.78 kV. Charge of the drop?? I got -1.2x10^-15 C ?

Question

anonymous · Answer

That's not quite right I think.  It should be pretty close to an integer value of e- (I got about 10e- )
 How did you set up the problem?  And did you convert all of your units to si units?

63mm = .063m
.78 kV = 780 V

anonymous · Answer

I got more help a little bit ago, but thanks anyways >.<