Friday, 4 October 2024, 10:53 PM

Site: edulabs.org academy

Course: Activity Examples (Activity Examples)

Glossary: Electronics (Mike Jaroch)

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## OCTAL NUMBER SYSTEMA number system based on powers of eight. This system is used extensively in computer work [13]. |

## OFF-LINE TEST EQUIPMENTEquipment that tests and isolates faults in modules or assemblies removed from systems [14]. |

## OHMThe unit of electrical resistance. That value of electrical resistance through which a constant potential difference of 1 volt across the resistance will maintain a current flow of 1 ampere through the resistance [1]. |

## OHM'S LAWThe current in an electrical circuit is directly proportional to the electromotive force in the circuit. The most common form of the law is E = IR, where E is the electromotive force or voltage across the circuit, I is the current flowing in the circuit, and R is the resistance of the circuit [1]. |

## OHMIC VALUEResistance in ohms [1]. |

## OHMMETERA meter used to measure resistance [3] [16]. |

## OHMS PER SQUAREThe resistance of any square area of thin film resistive material as measured between two parallel sides [14]. |

## OILCAN TUBEA type of planar tube, similar to the lighthouse tube, which has cooling fins. The oilcan tube is designed to handle large amounts of power at uhf frequencies [6]. |

## OMNIDIRECTIONAL ANTENNAAn antenna that radiates and receives equally in all directions (nondirectional) [10] [18]. |

## ON-LINE TEST EQUIPMENTContinuously monitors the performance of electronic systems [14]. |