Potential Difference (physics)?

http://session.masteringphysics.com/problemAsset/1…Which point, A or B, has a larger electric potential?What is the potential difference between A and B?

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Everardo Feil

Feb 20, 2025

The potential difference between two points, A & B, in an E-field is the negative of the work per unit charge to move a charge from A to B.V(B) – V(A) = – (1/q)Work Done by E (A to B)You can take any path from A to B . The easiest path is from A straight down 3 cm (the work is zero on this path because the displacement is perpendicular to force qE). Then straight across 7cm to B. (the work is qEX = qE(.07) for this part since the force is parallel to the displacement).V(B) – V(A) = – (1/q)(0) – (1/q)qE(.07)V(B) – V(A) = – (.07)ESince the difference is negative it means V(A) > V(B)... Show More

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Oran Armstrong

Potential Difference (physics)?

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