Electric Potential Energy Video Lessons

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Problem: A point charge q1 = +2.40 μC is held stationary at the origin. A second point charge q2 = -4.30 μC moves from the point X = 0.125 m, y = 0, to the point x = 0.265 m, y = 0.265 m.A. What is the change in potential energy of the pair of charges?B. How much work is done by the electric force on q2?

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We are dealing with electric potential energy and work in this problem. 

The necessary relations are:

Work:

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Problem Details
A point charge q1 = +2.40 μC is held stationary at the origin. A second point charge q2 = -4.30 μC moves from the point X = 0.125 m, y = 0, to the point x = 0.265 m, y = 0.265 m.

A. What is the change in potential energy of the pair of charges?

B. How much work is done by the electric force on q2?

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