General Electronic terms-O
Octal Number system .
A number system based on powers of
eight. Used in Computer System Analysis.
Octave
Interval between two sounds whose
fundamental frequencies differ by a ratio of 2 to 1. 440
Hz. is one octave above 220 Hz.
Ohm
Unit of resistance symbolized by the
Greek capital letter omega (W).
Ohmmeter
Device used to calculate electrical
resistance.
Ohm's law
Ohm's law states that current in a
resistance varies in direct proportion to voltage applied
and inversely proportional to resistance. v=ir
Ohms per volt
Relates to a value of ohms per volt
of full scale defection for a moving coil meter
movement.
Operational amplifier
An operational amplifier, is usually
referred to as an op-amp. These devices have very high
gain. On the left are the input terminals and on the
right side are output terminals. Used for signal
amplification.
Oscillator
An electronic circuit that produces a
continuous output waveform with only DC given to it.
Oscilloscope
An instrument used to see a signal
graphically.
Output impedance
Impedance computed across the output
terminals of a device without a load connected.
Output power
Amount of power a system can deliver to a load.
Overload Condition
Occurs when the load is greater than
the system was designed to handle.
