If 50 joule of work must be done to move an electric charge of 2 ,C from a point, where potential is

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2. Electric Potential and Capacitance

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If $50$ joule of work must be done to move an electric charge of $2 \,C$ from a point, where potential is $-10$ volt to another point, where potential is $V$ volt, the value of $V$ is ......... $V$

A

$5$

B

$-15$

C

$+15$

D

$+10$

Solution

(c)

$50=2(V-(-10))$

$25=V+10$

$V=15 \,V$

Standard 12

Physics

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