A charged particle of charge q and mass m is released from rest in an uniform electric field E. Neglecting the effect of gravity, the kinetic energy of the charged particle after time ‘t’ seconds is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Force on charge q in electric field E
⇒ F = qE ⇒ a = 
∴ Distance travelled
⇒ x = 
at 2 = 
Also, kinetic energy K.E = Work done by electric field E is
W E = qE. 
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