1. The problem statement, all variables and given/known data a) The potential difference in a simple circuit is 13 V and the resistance is 3 . What current I flows in the circuit? Answer in units of A. (I got I = 4.333 which is correct) b) How many electrons pass a given point in the circuit in 7 min? 2. Relevant equations I=[tex]\Delta[/tex]Q/[tex]\Delta[/tex]t n = I*t/q 3. The attempt at a solution I'm having trouble with Part B of the question. I used n = I*t/q, so 4.333A*420sec/1.6e^-19 = 1.1374e^22 Also, one ampere is 1 C per second, so 4.333*6.241e^18*420sec = 1.1357e^22 But both answers are wrong.