Points a and b have electric potentials of 330 v and 200 v , respectively. when an electron released from rest at point a arrives at point c, its kinetic energy is ka. when the electron is released from rest at point b, however, its kinetic energy when it reaches point c iskb=2ka
what is the electric potential at point c?

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?