A charged particle of mass $m$ and charge $q$ is released from rest in an uniform electric field E. Neglecting the effect of gravity, the kinetic energy of the charged particle after $t$ seconds is

Question

$\frac{E q^2 m}{2 t^2}$

$\frac{E q m}{t}$

$\frac{E^2 q^2 t^2}{2 m}$

$\frac{2 E^2 t^2}{m q}$

Solution

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