A charged particle of charge q=1μC and mass m = 1g is released from rest in a uniform electric field E = 100 volt/m. Neglecting the effect of gravity, the kinetic energy of the charged particle after 2 seconds is :
A
20J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
20μJ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
1μJ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1mJ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C20μJ Electric field is uniform a=qEm=0.1m/sec2 v=0+(0.1)×2=0.2m/sec KE=12mv2=20μJ