Questions
If an electron moves from rest from a point at which potential is 50 volt to another point at which potential is 70 volt, then its kinetic energy in the final state will be
a
3.2 X 10-10 J
b
3.2 X 10-18 J
c
1 N
d
1 dyne
detailed solution
Correct option is B
K.E=q0VA-VB =1.6×10-19(70-50)=3.2×10-18 JTalk to our academic expert!
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Kinetic energy of an electron accelerated through a potential difference of 100 V is
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