Either of the rotor or stator members is formed of groups of electromagnet pole pairs, the groups substantially equidistantly distributed along {HEAD ~ the angular extent} of {TAIL ~ the annular ring}, each of the groups comprising magnetic material magnetically isolated and separated from the other groups 
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Either of the rotor or stator members is formed of groups of electromagnet pole pairs , the groups substantially equidistantly distributed along { HEAD ~ the angular extent } of { TAIL ~ the annular ring } , each of the groups comprising magnetic material magnetically isolated and separated from the other groups
OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH