An electron starts from rest in a vacuum, in a region of strong electric field. The electron moves through a potential difference of 36 volts. What is the kinetic energy of the electron in electron volts (eV)

The kinetic energy is  

Explanation:

From the question we are told that

    The potential difference is  

The potential energy of the end  is mathematically represented as

q  is the charge on an electron with a constant value of

       substituting values

Now from the law of energy conservation

     The

Where   is the potential  energy at the end

 So  

The  negative sign is not includes because kinetic energy can not be negative

cant without the picture! ?