Assertion: coil's field | /r/CapableOf | pass through the secondary
Facets:
Source sentences:
text: Due to the iron core and close proximity of the windings, they have a high mutual inductance (M) , the coupling coefficient is close to unity 0.95 – 1.0, which means almost all the magnetic field of the primary winding passes through the secondary.   
text: , the coupling coefficient is close to unity 0.95 – 1.0, which means almost all the magnetic field of the primary winding passes through the secondary.