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Electrical Definitions |
Facsimile Apparatus : An apparatus which enebles documents to be transmitted,from one place to other,over telephone lines. |
Facsimile Transmission : A method of transmitting any kind of document to produce a copy of the object at the receiver side. |
Fall Time : The time gap between the 10% point and the 90% point on the negative going edge of a pulse. |
Feedback : The process of feeding back a fraction of output energy of an energy changing device to input. |
Fermi Dirac : A system of quantum statics that is used to describe the behaviour of solids in terms of a free electron model. |
Field Effect Transistor : A majority carrier multi-electrode semiconductor device in which current flows through a narrow conducting channel between two electrodes and conduction through channel is modulated by an electric field applied through third electrode. |
Film Resistor : A type of resistor,that uses a thin layer of resistive material deposited on an insulating core. |
Flip-Flop : A bistable device used for storing a bit of information. |
Floppy Disks : These are small flexible disks about the size of a 45 rpm records with the recording surface of ferric oxide on one or both sides. |
Frequency Convertors : A part of a frequency counter which converts the frequency to be measured down to a value measurable by the counter. |
Frequency Band: A particular range of frequencies that forms part of larger continuous series of frequencies. |
Frequency Division Multiplexing (FDM): A form of multiplex operation in which each user of the system is assigned a different frequency band. |
Frequency Modulation: A method of superimposing information signals on to a carrier signal in which the modulating signal varies the frequency of a carrier wave. |
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