1. The problem statement, all variables and given/known data an electron is accelerated through a potential difference from 0v to N kv. It is then ejected through a slit and deflected 10* over a distance r of 2 cm. find B ,v_f, and t(time) 2. Relevant equations qdelta V = 1/2Me v_f^2 (solved for vf) M(v/r)= qBsin[tex]\theta[/tex] solved for B 3. The attempt at a solution As listed above I solved for the variables listed (assuming I did it right, please correct me if Im wrong) but what is the relation of t to this, is it a kinematic or a break down of db/dt?