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  2. Coulomb's law - Wikipedia

    en.wikipedia.org/wiki/Coulomb's_law

    The law of superposition allows Coulomb's law to be extended to include any number of point charges. The force acting on a point charge due to a system of point charges is simply the vector addition of the individual forces acting alone on that point charge due to each one of the charges.

  3. Electric field - Wikipedia

    en.wikipedia.org/wiki/Electric_field

    This is the basis for Coulomb's law, which states that, for stationary charges, the electric field varies with the source charge and varies inversely with the square of the distance from the source. This means that if the source charge were doubled, the electric field would double, and if you move twice as far away from the source, the field at ...

  4. Relativistic electromagnetism - Wikipedia

    en.wikipedia.org/wiki/Relativistic_electromagnetism

    Faraday's law of induction was suggestive to Einstein when he wrote in 1905 about the "reciprocal electrodynamic action of a magnet and a conductor". [ 15 ] Nevertheless, the aspiration, reflected in references for this article, is for an analytic geometry of spacetime and charges providing a deductive route to forces and currents in practice.

  5. Electrostatics - Wikipedia

    en.wikipedia.org/wiki/Electrostatics

    It is defined as the electrostatic force , on a hypothetical small test charge at the point due to Coulomb's law, divided by the charge = Electric field lines are useful for visualizing the electric field. Field lines begin on positive charge and terminate on negative charge.

  6. Electric potential energy - Wikipedia

    en.wikipedia.org/wiki/Electric_potential_energy

    When talking about electrostatic potential energy, time-invariant electric fields are always assumed so, in this case, the electric field is conservative and Coulomb's law can be used. Using Coulomb's law, it is known that the electrostatic force F and the electric field E created by a discrete point charge Q are radially directed from Q.

  7. Electromagnetic radiation - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation

    Coulomb law; Electret; Electric charge; Electric dipole; Electric field; ... Interference is the superposition of two or more waves resulting in a new wave pattern ...

  8. Lorentz force - Wikipedia

    en.wikipedia.org/wiki/Lorentz_force

    In physics, specifically in electromagnetism, the Lorentz force law is the combination of electric and magnetic force on a point charge due to electromagnetic fields. The Lorentz force , on the other hand, is a physical effect that occurs in the vicinity of electrically neutral, current-carrying conductors causing moving electrical charges to ...

  9. Superposition principle - Wikipedia

    en.wikipedia.org/wiki/Superposition_principle

    The superposition principle, [1] also known as superposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.