What is leakage flux?

Some articles on flux, leakage flux:

Definition of Leakage Inductance
... The magnetic flux linked to both the primary winding and the secondary winding is said to be the main flux, (φ12 or φ21) ... The magnetic flux which interlinks only with the primary winding, and does not interlink with the secondary winding, is said to be the primary ... The magnetic flux which interlinks with the secondary winding, and does not interlink with the primary winding is said to be the secondary leakage flux, φσ2 ...

Famous quotes containing the word flux:

    Sense is a line, the mind is a circle. Sense is like a line which is the flux of a point running out from itself, but intellect like a circle that keeps within itself.
    Ralph J. Cudworth (1617–1688)