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Parallel and Series Combination of Capacitors

How much kine...

Question

How much kinetic energy will be gained by an particle in going from a point at $70$ $V$ to another point at $50$ $V$

A

80

k e V

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B

40

k e V

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C

80

e V

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D

20

e V

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Solution

The correct option is D $20$ $e V$
$K E = q$ (potential difference)
$\Rightarrow K E = + e \cdot (70 - 50)$ $e V$
$\Rightarrow K E = 20$ $e V$

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