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  2. Coulomb's law - Wikipedia

    en.wikipedia.org/wiki/Coulomb's_law

    Coulomb's inverse-square law, or simply Coulomb's law, is an experimental law [1] of physics that calculates the amount of force between two electrically charged particles at rest. This electric force is conventionally called the electrostatic force or Coulomb force. [2]

  3. Electromagnetism - Wikipedia

    en.wikipedia.org/wiki/Electromagnetism

    In physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interactions of atoms and molecules.

  4. Electrostatics - Wikipedia

    en.wikipedia.org/wiki/Electrostatics

    Electrostatics is a branch of physics that studies slow ... a surface charge will experience a force in the presence of an electric field. This force is the average ...

  5. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    The electric field was formally defined as the force exerted per unit charge, but the concept of potential allows for a more useful and equivalent definition: the electric field is the local gradient of the electric potential. Usually expressed in volts per metre, the vector direction of the field is the line of greatest slope of potential, and ...

  6. Electric field - Wikipedia

    en.wikipedia.org/wiki/Electric_field

    Electric fields are important in many areas of physics, and are exploited in electrical technology. For example, in atomic physics and chemistry , the interaction in the electric field between the atomic nucleus and electrons is the force that holds these particles together in atoms.

  7. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    Electric charge is a conserved property: the net charge of an isolated system, the quantity of positive charge minus the amount of negative charge, cannot change. Electric charge is carried by subatomic particles. In ordinary matter, negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms ...

  8. Work (electric field) - Wikipedia

    en.wikipedia.org/wiki/Work_(electric_field)

    The work can be done, for example, by electrochemical devices (electrochemical cells) or different metals junctions [clarification needed] generating an electromotive force. Electric field work is formally equivalent to work by other force fields in physics, [1] and the formalism for electrical work is identical to that of mechanical work.

  9. List of electromagnetism equations - Wikipedia

    en.wikipedia.org/wiki/List_of_electromagnetism...

    Lorentz force on a charged particle (of charge q) in motion (velocity v), used as the definition of the E field and B field.. Here subscripts e and m are used to differ between electric and magnetic charges.