The magnetic properties of the rotor and cores are selected to insure that {HEAD ~ the pole strength} in {TAIL ~ the teeth} will be retained during the changes in electromagnet current 
in
The magnetic properties of the rotor and cores are selected to insure that { HEAD ~ the pole strength } in { TAIL ~ the teeth } will be retained during the changes in electromagnet current
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH