Differenze tra le versioni di "Elettronica pratica/Definizioni"

nessun oggetto della modifica
m (+ categoria)
''Another order could be definitions by subject such as DC, AC, radio, integrated circuit, etc.''
;[[Electronics/AC_Voltage_and_Current|AC]] : AlternatingCorrente currentalternata. Consists of a periodic oscillation between two different voltages. Usually said to look like a sineun'onda wavesinusoidale, but is not always.
;AM : AmplitudeModulazione modulationdi ampiezza. Nelle Incomunicazioni radio communications, un segnale controlla l'ampiezza di un'onda portante a signalfrequenza controlsmolto thepiù amplitudeelevata e costante. L'onda portante viene filtrataed un altoparlante suona sulla base dell'ampiezza del segnale. of a carrier wave that is at a much higher, constant frequency. The carrier wave is filtered out and a loudspeaker plays based on the amplitude of the signal.
;AmpereAmper (A) : L'unita di corrente ''I'' nel sistema SI The SI unit for current ''I''. (Commonly spoken as "amps", "milliamps", etc.) The ampere is officially defined as that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one metre apart in vacuum, would produce between these conductors a force equal to 2&times;10<sup>-7</sup> newton per metre of length. There is another definition which is based on the deposition rate of silver (''in electrolysis?''), which is much easier to measure. The other electronics units are ''derived units'' based off of the ampere definition.
[[Categoria:Elettronica pratica|Definizioni]]