Electrostatic Potential and Capacitance - Result Question 21

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23. A particle of mass $m$ and 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

======= ####23. A particle of mass $m$ and 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

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/electrostatic-potential-and-capacitance/electrostatic-potential-and-capacitance—result-question-21.md (a) $q E y^{2}$

(b) $q E^{2} y$

(c) $q E y$

(d) $q^{2} E y$

[1998]

Topic 3: Capacitors, Capacitance, Grouping of Capacitors & Energy Stored in a Capacitor.

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Answer:

Correct Answer: 23. (c)

Solution:

  1. (c) K.E. $=$ Force $\times$ distance $=q E . y$