A) \[\frac{1}{2}qE{{y}^{2}}\]
B) \[qEy\]
C) \[qE{{y}^{2}}\]
D) \[q{{E}^{2}}y\]
E) \[{{q}^{2}}Ey\]
Correct Answer: B
Solution :
Kinetic energy = work done \[=F.d\] \[=qE\times y\] \[=qEy\]
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