switching-circuit theory ru
111Stock market crash — A stock market crash is a sudden dramatic decline of stock prices across a significant cross section of a stock market, resulting in a significant loss of paper wealth. Crashes are driven by panic as much as by underlying economic factors. They… …
112photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
113Amplificateur electronique — Amplificateur électronique Pour les articles homonymes, voir Amplificateur. Un amplificateur Hi Fi à tubes. Un amplificateur électronique (ou amplifica …
114Amplificateur Électronique — Pour les articles homonymes, voir Amplificateur. Un amplificateur Hi Fi à tubes. Un amplificateur électronique (ou amplifica …
115Amplificateur électronique — Pour les articles homonymes, voir Amplificateur. Un amplificateur Hi Fi à tubes. Un amplificateur électronique (ou amplificateur, ou ampli) est un système électronique …
116Amplificateurs — Amplificateur électronique Pour les articles homonymes, voir Amplificateur. Un amplificateur Hi Fi à tubes. Un amplificateur électronique (ou amplifica …
117Logic gate — A logic gate is an idealized or physical device implementing a Boolean function, that is, it performs a logical operation on one or more logic inputs and produces a single logic output. Depending on the context, the term may refer to an ideal… …
118Power factor — For other uses, see Power factor (pistol). The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load over the apparent power in the circuit,[1][2] and is a dimensionless number between 0 and 1… …
119Telephone tapping — Wiretap redirects here. For the radio program, see WireTap (radio program). Telephone tapping (also wire tapping or wiretapping in American English) is the monitoring of telephone and Internet conversations by a third party, often by covert means …
120Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …
