An α-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.51 × 106 V and then enters a uniform magnetic field whose magnitude is 3.87. The α-particle moves perpendicular to the magnetic field at all times. What is (a) the speed of the α-particle
I have the problem all set up to what final velocity is after using conservation of energy but all I need now is to figure out what delta V is. Do I just assume that delta V is just 1.51
× 106 V since the particle starts at rest?