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  Encyclopedia of Keywords > Industry > Manufacturing > Measurement > Force > Electric Field   Michael Charnine

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  1. The electric field is to charge as gravitational acceleration is to mass and force density is to volume. (Web site)
  2. Electric field is defined as the electric force per unit charge. (Web site)
  3. The electric field is a vector quantity, and the electric field strength is the magnitude of this vector. (Web site)

Magnetic Field

  1. Although this interpretation has been abandoned, Maxwell's correction to Ampere's law remains valid (a changing electric field produces a magnetic field).
  2. This source could be a current, a magnet, or a changing electric field, but it is always within the loops of magnetic field they create.
  3. Similarly, a changing electric field generates a magnetic field. (Web site)
  4. An electric field points north.

Electric Fields

  1. Like the electric field, the magnetic field can be defined by the force it produces.
  2. In the dynamic case the electric field is accompanied by a magnetic field, by a flow of energy, and by real photons.

Field Strength

  1. The electric field or electric field intensity is a vector quantity, and the electric field strength is the magnitude of this vector.
  2. Conductivity is defined as the ratio of the current density to the electric field strength.

Field Vector

  1. By convention, the polarisation of a radio wave is defined by the direction of the electric field vector.
  2. Due to the interaction with the molecule, the electric field vector of the light traces out an elliptical path while propagating. (Web site)
  3. In circularly polarized light, the electric field vector has a constant length, but rotates about its propagation direction. (Web site)


  1. This electric field exerts a force on other electrically charged objects. (Web site)
  2. It turns out the electric field changes as well which produces the same force in the original reference frame.
  3. For instance, the electric field produces an attractive or repulsive force between charged objects, which varies as the inverse square of distance. (Web site)


  1. At low frequencies, molecules in polar dielectrics are polarized by an applied electric field, which induces periodic rotations.
  2. When an external electric field is applied to a real medium, a current flows.
  3. That is, the polarization is a convolution of the electric field at previous times with time-dependent susceptibility given by χ e(Δ t). (Web site)
  4. The displacement current can be considered the elastic response of the dielectric material to any change in the applied electric field. (Web site)


  1. Thus, permittivity relates to a material's ability to transmit (or "permit") an electric field.
  2. Dielectric properties of LCs are related to the response of LC molecules to the application of an electric field. (Web site)
  3. The weber may be defined in terms of Faraday's law, which relates a changing magnetic flux through a loop to the electric field around the loop.


  1. If the electric field is subsequently decreased, the material will release the stored electrostatic energy.
  2. Electrets have a semipermanent external electric field, and are the electrostatic equivalent to magnets. (Web site)


  1. The concept of electric field was introduced by Michael Faraday. (Web site)
  2. Instead, the more general Gauss's Law, along with Faraday's law, determines the electric field.


  1. Electric field --- effect produced by an electric charge that exerts a force on charged objects in its vicinity.
  2. The electric field at a point is equal to the negative gradient of the electric potential there. (Web site)
  3. According to Equation (1) above, electric field is dependent on position.
  4. The mathematical definition of the electric field is developed as follows.
  5. Taken literally, this equation only defines the electric field at the places where there are stationary charges present to experience it.


  1. One of the products of these transformations is the part of the electric field which only acts on moving charges --- and we call it the "magnetic field".
  2. The moving observer claims that there is both a magnetic and an electric field but all of the force is due to the electric field.
  3. Electrical currents (moving charges) Magnetic dipoles Changing electric field These sources are thought to affect virtual particles to comprise the field.

Charged Particles

  1. In a nonlinear medium, the permittivity can depend on the strength of the electric field.
  2. In the static case, an electric field is composed of virtual photons being exchanged by the charged particle(s) creating the field.
  3. Charged particle motion induced by an electric field. (Web site)
  4. Electrical breakdown Condition in which, particularly with high electric field, a nominal insulator becomes electrically conducting.


  1. The electric field due to any single charge falls off as the square of the distance from that charge. (Web site)
  2. A capacitor stores energy in an electric field. (Web site)
  3. In the case of the capacitor, the electric field is conservative - that is, the field is generated by a charge density.


  1. Some ionic crystals and polymer dielectrics exhibit a spontaneous dipole moment which can be reversed by an externally applied electric field. (Web site)
  2. Note: The dipole moment is shown to be pointing in the same direction as the electric field. (Web site)
  3. Physical dipoles, point dipoles, and approximate dipoles Real-time evolution of the electric field of an oscillating electric dipole.


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  Short phrases about "Electric Field"
  Originally created: June 24, 2008.
  Links checked: March 25, 2013.
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