electrical quantity
1Electrical element — Electrical elements are conceptual abstractions representing idealized electrical components, such as resistors, capacitors, and inductors, used in the analysis of electrical networks. Any electrical network can be analysed as multiple,… …
2Electrical resistance — is a ratio of the degree to which an object opposes an electric current through it, measured in Ohms. Its reciprocal quantity is electrical conductance measured in Siemens. Assuming a uniform current density, an object s electrical resistance is… …
3Electrical resistivity tomography — (ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub surfaces structures from electrical measurements made at the surface, or by electrodes in one or more boreholes. It is closely related to the medical imaging …
4Electrical resistivity and conductivity — This article is about electrical conductivity in general. For the specific conductance of aqueous solutions, see Conductivity (electrolytic). For other types of conductivity, see Conductivity. Electrical resistivity (also known as resistivity,… …
5Quantity surveyor — A quantity surveyor (QS) or cost engineer is a professional person working within the construction industry. The role of the QS is, in general terms, to manage and control costs within construction projects and may involve the use of a range of… …
6Electrical connector — Back of an audio amplifier features a variety of electrical connectors An electrical connector is an electro mechanical device for joining electrical circuits as an interface using a mechanical assembly. The connection may be temporary, as for… …
7Electrical telegraph — A printing electrical telegraph receiver, and a transmitter key at bottom right An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device… …
8Electrical impedance — Electromagnetism Electricity · …
9electrical attraction — Attraction At*trac tion, n. [L. attractio: cf. F. attraction.] 1. (Physics) An invisible power in a body by which it draws anything to itself; the power in nature acting mutually between bodies or ultimate particles, tending to draw them together …
10Signal (electrical engineering) — In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time varying or spatial varying quantity. In the physical world, any quantity measurable through time or over space can be taken as… …
