A temporary magnet made of a ferromagnetic core wound with insulated wire through which is passed an electric current. The current flow through the windings causes a magnetic field to build that will attract magnetic material.
Related Terms |
RESTRICTOR
A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.
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SEEBECK EFFECT
When two different adjacent metals are heated, an electric current is generated between the metals.
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AMMETER
An instrument for measuring the magnitude of electric current flow.
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ARC
A flash, caused by an electric current ionizing a gas or vapor.
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COMPRESSOR
A device which converts mechanical force and motion into pneumatic flow power.
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ARMATURE DEMAGNETIZATION
The reduction in the effective magnetic lines of force, produced by the armature current.
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ALIVE
A term referring to a circuit in which a current is flowing. Also referred to as live.
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ALTERNATOR
A device which converts mechanical energy, into alternating current.
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AIR GAP
The space between magnetic poles, or between the rotating and stationary assemblies in a motor or generator.
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HARMONIC FUNCTION
Any real function that satisfies a certain equation. In its simplest form, as used in tide and tidal current predictions, it is a quantity that varies as the cosine of an angle that increases uniformly with time
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