In a television set, electrons are accelerated from rest through a potential difference of 23 kV. The electrons then pass through a 0.28 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience. i know to use F=qvB to find max but i am having trouble getting the right units to find v i use (1/2)mv(sq.). but how do i get 23kV in the right units to use this equation?