Ac Test 1 Flashcards
Saturated
Reached max level of magnetism
Law of magnetism
Opposites attract likes repel
Retentivity
The ability of a material once magnetized to maintain a magnetic state without the presence of a magnetizing force
Ladder diagram
A drawing that shows the logic associated with relay circuits
Relative permeability
For a given material the ratio of absolute permeability to the permeability of a vacuume
Hysteresis
The effect in a magnetic field when flux density lags behind the application of magnetic field intensity
Rms constant
.707
A compass points toward _____________
Magnetic South Pole
Flux
Imaginary lines used to describe the magnitude and shape of a magnetic field.
50% of power is at ______degrees
30
Magnetic field intensity
The magnetomotive force per unit length
Baseline permeability is ________
Air
Flux density
A value that is proportional to the number of lines of flux that are perpendicular to a given area
Permeability
A parameter which describes ease with which a magnetic field can be established in a given material
Magnetomotive force
The cause of magnetic flux . The product of a number of turns in a conductor and the current in that conductor
