1. The problem statement, all variables and given/known data A mass spectrometer uses either a magnetic field or an electric field to deflect charged particles. A proton starts from rest a plate P. The Speed of the proton as it passes through the hole in plate Q is? V= 10000 V Mass of a proton = 1.67x10^-27 Charge of a proton = 1.6x10^-19 With this you then need to find the magnetic field intensity. Radius of curvature of a protons path is 3.00 m. 2. Relevant equations I have no clue? 3. The attempt at a solution Dont know were to start?