Question

an electron of mass m kg and having charge of e coulombs travels from rest through a potential difference of v volts. its kinetic energy will be

Answer 1

Answer:

eV = 1/2mv²

Explanation:

Vi = 0 ms-1 , Vf= V , mass = m , charge = e,  K.E. =?

according to work energy principal ⇒work done appears as K.E =1/2m(vf²-vi²)=1/2m(v-0)

eV = 1/2mv²