View Single Post
berkeman
#6
Feb12-07, 04:17 PM
Mentor
berkeman's Avatar
P: 41,140
Quote Quote by Salerk View Post
not quite, I understand that if its a postive charge on the nail ill need to add a negative charge to counter it.

and that the total charge devided by the charge per electron would show the number of electrons required, all I cant get is why 1.6x10^-19 needs to become 1.6x10^19 in order to give the corect answer.
I think you are using your calculator incorrectly. There is no way that 10^-6/10^19 = 10^13.

Maybe try it again, and be careful with the exponent signs on the calculator?