JEE Main & Advanced
Physics
Nuclear Physics And Radioactivity
Question Bank
Mock Test - Modern Physics
question_answer
An electron beam accelerated from rest through a potential difference of 5000 V in vacuum is allowed toimpinge on a surface normally. The incident current is \[\mu A\] and if the electrons come to rest on striking the surface the force on it is ______\[\times {{10}^{-8}}N\].