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The electric field strength at a point is the force experienced per unit positive charge placed at that point. Formula: $E = \frac{F}{q}$, where $E$ is the electric field strength, $F$ is the force, and $q$ is the charge.

The dielectric constant is the ratio of the absolute permittivity of a material to the vacuum permittivity. Formula: $k = \frac{\varepsilon}{\varepsilon_0}$, where $k$ is the dielectric constant, $\varepsilon$ is the absolute permittivity, and $\varepsilon_0$ is the vacuum permittivity.

Coulomb's Law describes the electrostatic force between two charged particles. Formula: $F = k_e \frac{|q_1q_2|}{r^2}$ where $F$ is the force, $k_e$ is Coulomb's constant, $q_1$ and $q_2$ are the charges, and $r$ is the distance between the charges.

Electric potential energy is the work done to bring a charge from infinity to a point in space in an electric field. Formula: $U = k_e \frac{qQ}{r}$, where $U$ is the potential energy, $q$ is the test charge, $Q$ is the source charge, and $r$ is the separation.

Permittivity is a measure of how much electric field is 'allowed' to permeate a medium. Formula (for vacuum): $\varepsilon_0 = 8.854 \times 10^{-12} \text{ F/m}$, where $\varepsilon_0$ is the permittivity of free space, also known as the electric constant.

The electric dipole moment is a measure of the separation of positive and negative charges in a system. Formula: $\vec{p} = q \vec{d}$, where $\vec{p}$ is the dipole moment, $q$ is the magnitude of one of the charges, and $\vec{d}$ is the displacement vector pointing from the negative to the positive charge.

Faraday's law of induction states that the induced electromotive force in any closed circuit is equal to the negative of the rate of change of the magnetic flux through the circuit. Formula: $\mathcal{E} = -\frac{d\Phi_B}{dt}$, where $\mathcal{E}$ is the electromotive force (EMF) and $\Phi_B$ is the magnetic flux.

Electric potential is the amount of electric potential energy per unit charge at a point in an electric field. Formula: $V = \frac{U}{q} = k_e \frac{Q}{r}$, where $V$ is the electric potential, $U$ is the potential energy, and $r$ is the distance from the charge.

Capacitance is a measure of a component's ability to store charge. Formula: $C = \frac{Q}{V}$, where $C$ is the capacitance, $Q$ is the charge, and $V$ is the voltage across the component.