One eV is the kinetic energy acquiredby an electron accelerated.on an,electric field of p.d.one volt:- How is 1ev and 1Mev related to joule?

Electric potential difference is the work done to move a unit +ve test charge from one point to another in an electric field. Potential at a point Is given by the equation V = 3x^2+ 2y^2 + 4z^2 . Calcu-late the magnitude of field components at (2,1,1).

The one electron species having ionization energy of 54.4 eV is :