Ok, so we learned about rail guns today (they are so freakin' cool), and I understand how it moves one rod down the rails... however, what happens if there are two?
Won't both move down the rails (away from battery) since the current is flowing clockwise, or will they repel each other?
Question:
What is the radius of the smallest possible circular orbit that a 2MeV proton can have in a 2 T magnetic field?
Answer (what I've got so far, at least):
I assume that r = mv/qB is the formula I use for this problem, due to being given mass, B, q and all that, but I can't...