amperes volts and ohms
11Soudage (Théorie) — Cet article aborde le concept d énergie de soudage, afin de décrire et de quantifier quelques spécificités du soudage que sont les phénomènes locaux de fusion et de solidification ainsi que l écoulement thermique et les effets qui en résultent.… …
12Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
13electromagnet — /i lek troh mag nit/, n. a device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it. [1815 25; ELECTRO + MAGNET] * * * Device consisting of a core of magnetic material such as iron, surrounded… …
14resistance — /ri zis teuhns/, n. 1. the act or power of resisting, opposing, or withstanding. 2. the opposition offered by one thing, force, etc., to another. 3. Elect. a. Also called ohmic resistance. a property of a conductor by virtue of which the passage… …
15Électricité — Ligne électrique près d une voie ferrée en Pologne. La …
16Mark Levinson ML-3 — amplifier The Mark Levinson ML 3 is a 200 watt per channel dual monaural Class AB2 power amplifier that uses toroidal transformers. Produced between 1979 and 1987 the ML 3 is two electrically separate amplifiers in one chassis, hence the name… …
17Transformer types — Circuit symbols Transformer with two windings and iron core. Step down or step up transformer. The symbol shows which winding has more turns, but not usually the …
18Ohm's law — Elect. the law that for any circuit the electric current is directly proportional to the voltage and is inversely proportional to the resistance. [1840 50; named after G. S. OHM] * * * Relationship between the potential difference (voltage),… …
19crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
20Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
