- Home
- Standard 12
- Physics
2. Electric Potential and Capacitance
easy
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
A
$qE{y^2}$
B
$q{E^2}y$
C
$qEy$
D
${q^2}Ey$
(AIPMT-1998)
Solution
(c) Kinetic energy = Force $×$ Displacement = $qEy$
Standard 12
Physics