1. The problem statement, all variables and given/known data question - see image 2. Relevant equations 3. The attempt at a solution so I use the equation F = BIl F = 0.2 * 0.4 * 8 = 0.64 Surely I just divide it by the number of electrons (8*1028) to get the answer BUT this does not give the correct answer. The correct answer is D???