Tuesday, 18 April 2017

stopping potential or cut off potential

Cut-off potential : The minimum negative potential required to just make the photo electric current of the plate is zero, defined as stopping potential.

                 Kmax = eV₀           {eV₀ = stopping potential} 


Electron volt : One electron volt is the kinetic energy gained by an electron when it is accelerated through a potential difference of one volt.
                                     1eV = qV
                                     1eV = 1.602 x 10-19  x 1

                                     [1eV = 1.602 x 10-19 ]   

                                                                                             https://youtu.be/O3D2belxKBs      

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