Question #d9695

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Question #d9695

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Answer 1 · 2017-03-24T20:43:34

The difference in values of electric potential between any two points is called the potential difference between the two points.

Explanation:

Owing to it's irrotational nature (i.e. $\nabla X \to E = 0$ $nabla X vec E = 0$ ), the Electrostatic field can be expressed as a gradient of a scalar potential function.

Thus, $\to E = - \nabla V$ $vec E = -nablaV$ where $V$ $V$ is the potential function and the - sign is introduced for convenience and consistency.

Thus, the potential function can have various values in various points in space.

If $V_{A}$ $V_A$ and $V_{B}$ $V_B$ be values of the potential at A and B respectively, the potential difference would be,

$V_{A} - V_{B}$ $V_A - V_B$

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