Hello! I have the equation FM = qvBsinθ . As the end result, I am trying to figure out what B I need to change θ even a little bit. To do that, I was planning to find the minimum B by differentiating B=(μe/4π)(qv x R / R3) in terms of R and setting it equal to zero. . I am assuming that this is a form of the Biot Savart Law for things that aren't necessarily wires. Am I on the right track? If I am on the right track, let's say I plug in the minimum B value I find into the very first equation. I now have three variables: θ, F, and dR or R. I'm confusing myself here... ignoring the F for now, I am trying to find dθ, if so, any tips on how to get rid of all the variable except for one? (I have q and v and μ as all constants). I'm not at all knowledgeable on this topic, but since I'm on a time limit, jumping quite a bit. I'm a high school senior taking Calculus BC, so I can probably figure out the math... I hope :) Thank you so much for helping!