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  2. Electric potential energy - Wikipedia

    en.wikipedia.org/wiki/Electric_potential_energy

    Electric potential energy is a potential energy (measured in joules) that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system.

  3. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge.Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

  4. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    Electric charge (symbol q, sometimes Q) is a physical property of matter that causes it to experience a force when placed in an electromagnetic field.Electric charge can be positive or negative.

  5. Nuclear power - Wikipedia

    en.wikipedia.org/wiki/Nuclear_power

    The first light bulbs ever lit by electricity generated by nuclear power at EBR-1 at Argonne National Laboratory-West, December 20, 1951. [7]The process of nuclear fission was discovered in 1938 after over four decades of work on the science of radioactivity and the elaboration of new nuclear physics that described the components of atoms.

  6. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    Inductive charging pad for a smartphone as an example of near-field wireless transfer. When the phone is set on the pad, a coil in the pad creates a magnetic field [1] which induces a current in another coil, in the phone, charging its battery.

  7. Specific energy - Wikipedia

    en.wikipedia.org/wiki/Specific_energy

    Specific energy or massic energy is energy per unit mass.It is also sometimes called gravimetric energy density, which is not to be confused with energy density, which is defined as energy per unit volume.

  8. Fermi energy - Wikipedia

    en.wikipedia.org/wiki/Fermi_energy

    The Fermi energy is a concept in quantum mechanics usually referring to the energy difference between the highest and lowest occupied single-particle states in a quantum system of non-interacting fermions at absolute zero temperature.

  9. Energy efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_efficiency

    Energy efficiency may refer to: . Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process Electrical efficiency, useful power output per electrical power consumed