Question
A particle of mass, $m$ and charge, $q$ is placed at a rest in a uniform electric field, $E$ and then released. The kinetic energy attained by the particle after moving a distance, $y$ is(a) $q E y^{2}$(b) $q E^{2} y$(c) $q E y$(d) $q^{2} E y$
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Step 1: The force on a charged particle in an electric field is given by $F = qE$. Show more…
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A particle of mass $m$ and charge $q$ is placed at rest in a uniform electric field $E$ and then released. The $\mathrm{KE}$ attained by the particle after moving a distance $y$ is (a) $q E y^{2}$ (b) $q E^{2} y$ (c) $q E y$ (d) $q^{2} E y$
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A charged particle of mass $m$ and charge $q$ is released from rest in an electric field of constant magnitude $E$. The kinetic energy of the particle after time $t$ will be (A) $\frac{2 E^{2} t^{2}}{m q}$ (B) $\frac{E q^{2} m}{2 t^{2}}$ (C) $\frac{E^{2} q^{2} t^{2}}{2 m}$ (D) $\frac{E q m}{2 t}$
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