#electrical_phenomenon  a physical phenomenon involving electricity
  supertype:  #physical_phenomenon  a natural phenomenon involving the physics of matter and energy
  subtype:  #amperage  the strength of a electrical current measured in amperes
  subtype:  #capacitance__electrical_capacity__capacity  an electrical phenomenon whereby an electric charge is stored
  subtype:  #electrical_elastance__elastance  the reciprocal of capacitance
  subtype:  #electric_charge__charge  the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons; "the battery needed a fresh charge"
     subtype:  #electrostatic_charge__electrostaticcharge  the electric charge at rest on the surface of an insulated body (which establishes and adjacent electrostatic field)
     subtype:  #positive_charge  having a deficiency of electrons; having a higher electric potential
     subtype:  #negative_charge  having a surplus of electrons; having a lower electric potential
  subtype:  #pyroelectricity  generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature
  subtype:  #electric_current__current  a flow of electricity through a conductor; "the current was measured in amperes"
     subtype:  #thermionic_current  an electric current produced between two electrodes as a result of electrons emitted by thermionic emission
  subtype:  #dielectric_heating  heating of an insulator by a high-frequency electric field
  subtype:  #induction.electrical_phenomenon  an electrical phenomenon whereby an electromotive force (EMF) is generated in a closed circuit by a change in the flow of current
     subtype:  #electromagnetic_mutual_induction__mutual_induction  generation of electromotive forces in each other by two adjacent circuits
     subtype:  #self-induction  generation of an electromotive force (EMF) in a circuit by changing the current in that circuit; usually measured in henries
  subtype:  #electric_potential__potential__potential_difference__potentialdifference__potential_drop__potentialdrop__voltage  the difference in electrical charge between two points in a circuit expressed in volts
     subtype:  #evoked_potential  the electrical response of the central nervous system produced by an external stimulus; "he measured evoked potentials with an electroencephalogram"
     subtype:  #resting_potential__restingpotential  the potential difference between the two sides of the membrane of a nerve cell when the cell is not conducting an impulse
  subtype:  #conductance  a material's capacity to conduct electricity; measured as the reciprocal of electrical resistance
  subtype:  #electric_resistance__electrical_resistance__impedance__resistance__resistivity__ohmic_resistance__ohmicresistance  a material's opposition to the flow of electric current; measured in ohms
     subtype:  #ohmage  the ohmic resistance of a conductor
  subtype:  #reactance  opposition to the flow of electric current resulting from inductance and capacitance (rather than resistance)
  subtype:  #reluctance  (physics) opposition to magnetic flux (analogous to electric resistance)
  subtype:  #skin_effect  the tendency of high-frequency alternating current to distribute near the surface of a conductor
  subtype:  #electrical_disturbance  electrical signals produced by unwanted sources (atmospherics or receiver noise or unwanted transmitters)
  subtype:  #voltage__electromotiveforce__emf  the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

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