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Potential and Potential Energy Relation

12 J of work ...

Question

12 J of work has to be done against an existing electric field to take a charge of 0.01 from A to B. Hwo much is the potential difference $V_{B} - V_{A}$ ?

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Solution

Now, $v_{b} - v_{a}$ = potential difference = ?
Charge = 0.01 C,
Work done = 12J
$Now, work done = Potential difference \times charge$
Pot. Difference $= \frac{12}{0.01} = 1200$ volt.

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