The change in the electrical potential energy depends on the charge q Uniform

The change in the electrical potential energy depends

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The change in the electrical potential energy depends on: the charge ( q ) Uniform Field a field that has the same value and direction at all points Figure 1. A positive charge moves from point A to point B in a uniform electric field. As a result, the potential energy changes.
the electric field strength ( E ) the displacement ( d ) It can be written as follows: Where: 𝑷𝑬 ????𝒕?𝒊? electrical potential energy ? charge 𝑬 electric field strength ? displacement from the reference point in the direction of the field The negative sign indicates that electric potential energy will increase if the charge is negative and decrease if the charge is positive. As with other forms of energy, the SI unit of electrical potential energy is the joule ( J ). This equation is valid only for a uniform electric field (such as shown in Figure 1 which is that between two oppositely charged parallel plates). In contrast, the electric field lines for a point charge are farther apart as the distance from the charge increases. Thus the electric field of a point charge is an example of a non-uniform electric field. 2.1.2 Potential Difference At any point in an electric field, the magnitude of the associated electrical potential energy increases as the magnitude of the charge increases. It is more convenient to express the potential in a manner dependent of the charge at that point, a concept called electric potential .

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