electrons and net charges. doing my head in.?

Question

knowing the charge of an electron is -1.6 x 10^(-19) C, how do i find how many electrons pass through a cross section of a wire each second if a current of 1A flows in the wire carried by electrons??


also if the net charge through a cross section of a certain element is given by q(t)=3-3e^(-2t) C, how do i determine the current through the element??

thanks so much for any help

Answer 1

1 C of charge or 1/(1.6x10^-19) electrons

i = d(q(t))/dt = 6e^(-2t)