Question 56An electron charge 1.6 x 10-19C is accelerated in vacuum from rest at zero volt towards a plate at 40k V. Calculate the kinetic energy of the electronA.4.0 x 10-26JB.4.0 x 10-21JC.6.4 x 10-20JD.3.2 x 10-15JE.2.5 x 10-20JObjective Show full explanation