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The electrostatic potential energy, U E, of one point charge q at position r in the presence of an electric potential is defined as the product of the charge and the electric potential. U E ( r ) = q V ( r ) {\displaystyle U_{\mathrm {E} }(\mathbf {r} )=qV(\mathbf {r} )}
15 lut 2023 · For a force between two point charges described by Coulomb's Law, the electrostatic potential energy is: \[PE(r)=-\int F(r)dr=-\int\dfrac{kq_1q_2}{r^2}dr=\dfrac{kq_1q_2}{r}+C\label{PEgen}\] where the constant \(C\) is some constant, and PE has units of Joules.
We use the letter U to denote electric potential energy, which has units of joules (J). When a conservative force does negative work, the system gains potential energy. When a conservative force does positive work, the system loses potential energy, ΔU = − W.
21 paź 2024 · Define electric potential and electric potential energy. Describe the relationship between electric potential difference and electric field. Describe the relationship between electric potential and electrical potential energy. Explain electron volt and its usage in submicroscopic process.
Electric potential (also called the electric field potential, potential drop, the electrostatic potential) is defined as the amount of work/energy needed per unit of electric charge to move the charge from a reference point to a specific point in an electric field.
It is a function of $x$, $y$, $z$. We call this scalar function the electrostatic potential at any point. Electrostatic potential: \begin{equation} \label{Eq:II:4:22} \phi(P)=-\int_{P_0}^P\FLPE\cdot d\FLPs. \end{equation}
The electrostatic energy of a system of particles is the sum of the electrostatic energy of each pair. We shall concern ourselves with two aspects of this energy. One is the application of the concept of energy to electrostatic problems; the other is the evaluation of the energy in different ways.
