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A particle of charge q is placed at rest in a uniform electric field E and then released.

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A particle of charge q is placed at rest in a uniform electric field E and then released. The kinetic energy attained by the particle after moving a distance y is-

(a) qE2 y 

(b) q2 Ey 

(c) qEy2 

(d) qEy

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1 Answer

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Best answer

(d) qEy

Force on the particle = qE 

KE = Workdone by the force = F.y = qEy

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