Electrical Glossary

Commonly Used Acronyms and Definitions.

DMM-DVOM=Digital Multimeter

OL/OFL=Out of limits that a DMM can measure when set to a specific range.

Infinity=To continue without end or no ending point.

Constant=A value that always remains the same.

Impedence=A working resistance;a material's opposition to flow of electrical current.Measured in Ohms.

Resistance=Like Impedence,it is a electrical restriction measured in Ohms.Opposition to Current (Amperage)flow.

Opposition=The action of working against something(opposing)

Electrical Load=Anything that will cause a voltage drop in an electrical circuit due to it's internal resistance.

Voltage Drop=Voltage that is consumed by a load as current flow through it.

Continuity=An uninterrupted path;a complete path for current to flow in a circuit.

Induce=To produce,create or bring about something.Creating voltage in a conductor while moving through a magnetic field.

Reciprocal=One number related to another number that when multiplied together their product is 1.

                  To get the reciprocal of a number,just divide that number by 1.

                  The reciprocal of 2 is .5    2x.5=1

Voltage=Electrical pressure needed to force current through a circuit.

              Electrical Force measured in Volts.

Amperes=The movement of electrons across a conductor.

                Electrical current(electron)flow measured in Amps.

Ohms=The measurement of an electrical restriction/resistance.

Direct Current=Voltage amount that stays above 0 volts causing current to flow in only one direction. 

Alternating Current=Voltage amount that goes above and below 0 volts causing current to flow back and forth in two directions.

Analog=Voltage levels that continually vary or range.

Digital=Voltage levels that are at maximum level or 0.no middle range.

R.F.I/E.M.I=Radio Frequency Interference;Any electromagnetic or radio wave disturbance that interrupts,obstructs,degrades or limits the effective performance of electronics and electrical equipment.



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