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Useful Industry Links Glossary Of Electronic and Elctrical Terms  

ES Components has collected hundreds of definitions to help you with the meaning of acronyms, words and
regulations that you may run into in the electronic and electrical industry

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  Term Definition  
  OHM The unit of measurement of resistance symbolized by the Greek letter, omega (W). It is named after George Ohm, a 19th century German physicist. One ohm is the value of resistance through which an electromotive force of one volt will maintain a current of one ampere. See RESISTANCE.  
  OHM'S LAW The relationship that exists between the electrical parameters of voltage (electrical pressure), resistance (the opposition to the voltage), and current (the flow of electrons in the circuit). Ohm's Law states that the amount of current flowing in a circuit is equal to the applied voltage divided by the circuit resistance.  
  OPTOELECTRONIC COMPONENTS emit or detect light in electronic circuits. Types include infrared data
communications devices (IRDCs) for wireless two-way data transfer; optocouplers for circuit isolation; IR emitters for one-way remote control; optical sensors for detection; and LEDs for light sources.
  ORIGINAL WIDTH The width dimensions or distances that is intended by design.  
  OSCILLOSCOPE electronic measurement tool which allows one to view a waveform. The vertical axis shows amplitude and the horizontal axis shows time  
  OXIDE LAYER A layer of an integrated circuit created to provide isolation between conductive layers.  

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