1. The problem statement, all variables and given/known data Once a circular path has been obtain for the electrons, how will increasing current to the coils affect that path? Use equation 1 and the fact that e/m is a constant for the electron. 2. Relevant equations e/m = 2V/B^2r^2 3. The attempt at a solution I'm unclear as to how to find a solution because I think that the circular path of electrons will grow brighter, or grow dimmer when more current, or less current is applied, once the electrons are in a circular path. However, how can I use the given equation to prove this? Note, I have not conducted any type of measurements or observations of any kind, as this is a pre-lab questionnaire that I am fulfilling to get credit. UPDATE: I firmly believe that increasing the current to the coils will make the circle larger, once the circular path has been established prior to increasing said current. However, how can I use the given equation to show this? As an aside, increasing the magnetic field will make the circle smaller.