longitudinal electric field
1electric motor — motor (def. 4). [1885 90] * * * Introduction any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena. Most electric motors develop their mechanical torque by the… …
2Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …
3Scalar field theory (pseudoscience) — For the quantum mechanical scalar field theory which is a field theory of spinless particles, see Scalar field theory Scalar field theory (SFT) is a set of theories in a model which posits that there is a basic mechanism that produces the… …
4Quantum field theory — In quantum field theory (QFT) the forces between particles are mediated by other particles. For instance, the electromagnetic force between two electrons is caused by an exchange of photons. But quantum field theory applies to all fundamental… …
5Twisted nematic field effect — The twisted nematic effect ( TN effect ) in liquid crystals is claimed to be first discovered by James Fergason in 1970 at the International Liquid Xtal Company in Kent Ohio. Fergason patented his work at about the same time that the Central… …
6Conservative vector field — In vector calculus a conservative vector field is a vector field which is the gradient of a function, known in this context as a scalar potential. Conservative vector fields have the property that the line integral from one point to another is… …
7Solenoidal vector field — In vector calculus a solenoidal vector field (also known as an incompressible vector field) is a vector field v with divergence zero at all points in the field; The fundamental theorem of vector calculus states that any vector field can be… …
8ER2 electric trainset — ER2 ELECTRIC TRAINSETSince 1962 Railroad Machinery Plants of Riga and Kalinin started to release ER2 electric trainsets instead of ER1. ER2 cars have footboards for low platforms, and aprons for high platforms (installed in train yards.) The… …
9Electrostatic lens — An electrostatic lens is a device that assists in the transport of electrons emitted from a sample to an electron analyzer, analogous to the way an optical lens assists in the transport of light in an optical instrument. The recent development of …
10plasma wakefield acceleration — noun a method of high gradient particle acceleration which utilizes the longitudinal electric field of plasma wakefield excited by a laser pulse or bunch of relativistic charged particles; abbreviated as PWFA …
