applied electromotive force
71Battery — /bat euh ree/, n. The, a park at the S end of Manhattan, in New York City. Also called Battery Park. * * * Any of a class of devices, consisting of a group of electrochemical cells (see electrochemistry), that convert chemical energy into… …
72Voice coil — A voice coil (consisting of a bobbin, collar and winding) is the coil of wire attached to the apex of the cone of a loudspeaker. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The… …
73Electret — (formed of elektr from electricity and et from magnet ) is a dielectric material that has a quasi permanent electric charge or dipole polarisation. An electret generates internal and external electric fields, and is the electrostatic equivalent… …
74AC motor — An AC motor is an electric motor that is driven by an alternating current. It consists of two basic parts, an outside stationary stator having coils supplied with AC current to produce a rotating magnetic field, and an inside rotor attached to… …
75Georg Ohm — Georg Simon Ohm Born 17 March 1789(1789 03 17) Erlangen, Germany …
76Ohm — This article is about the SI derived unit (Ω). For other meanings, see Ohm (disambiguation). A multimeter can be used to measure resistance in ohms. It can also be used to measure capacitance, voltage, current, and other electrical… …
77Electrophoresis — Method used in clinical and research laboratories for separating molecules according their size and electrical charge. Electrophoresis is used to separate large molecules (such as DNA fragments or proteins) from a mixture of molecules. An… …
78List of electrical engineering topics — This is a listing of electrical engineering and electronic engineering topics and related terms. Contents 1 Electromagnetism 2 Physical laws 3 Control engineering 4 Electronics …
79gauss — /gows/, n. Elect. 1. the centimeter gram second unit of magnetic induction, equal to the magnetic induction of a magnetic field in which one abcoulomb of charge, moving with a component of velocity perpendicular to the field and equal to one… …
80impedance — 1. Total opposition to flow. In electricity, when flow is steady, i. is simply the resistance, e.g., the driving pressure per unit flow; when flow is changing, i. also includes the factors that oppose changes in flow. Thus, deviations of i., from …
