The flashcards below were created by user
Brownout
on FreezingBlue Flashcards.
-
Permeability
The ability of a substance to be magnetized upon application of a magnetizing force
u
Wb/Atm
-
Flux density
The flux per unit area
B
T
-
Flux
the strength of a magnetic field represented by lines of force
Φ
Wb
-
Magnetizing Force
Magnetomotive force per unit length of a magnetic circuit
H
At/m
-
Magnetomotive force
The driving force in a magnetic circuit that establishes flux
Fm
At
-
Reluctance
A measurement of the opposition of a material to the establishment of the magnetic field
Rm
At/Wb
-
Alternating current flowing in the primary of a transformer creates an alternating , which establishes an alternating flux in the core.
mmf
-
The mmf is calculated as the of the coil and number of turns. The flux, according to law is the of the coil mmf to the reluctance of the core.
- product
- current
- Weber’s
- ratio
-
According to law, the alternating flux induces a voltage across the secondary winding. Secondary current flows when a load is connected across the secondary terminals.
Faraday’s
-
The load current, according to law is calculated as the of the induced voltage and the load .
|
|