A ring-shaped inogara magineti inogadziriswa muDC mota, uye ikozvino inopfuura nepakati pecoil pa rotor kuti ibudise simba reampere. Kana iyo coil iri pa rotor inofananidzwa nemagnetic field, kutungamira kwemagineti kuchachinja kana ikaramba ichitenderera. Nokudaro, bhurashi pamagumo e rotor inoshandurwa neIwo mahwendefa akabatanidzwa, kuitira kuti hutungamiri huripo pane coil zvakare huchinje, uye kutungamirirwa kwesimba rinogadzirwa neLorentz harishanduki, saka motokari inogona kuramba ichitenderera mune imwe nzira.
Nheyo yekushanda yeDC jenaretandeye kushandura iyo alternating electromotive force yakanyudzwa mucoil ye armature kuita DC electromotive simba kana ichidhonzwa kubva kumagumo ebhurashi nemufambi uye commutation mhedzisiro yebhurashi.
Kutungamirirwa kwesimba re electromotive induced kunotarwa maererano nemutemo wekurudyi (magnetic field line inonongedza muchanza, chigunwe chinonongedza kugwara rekufamba kwemutyairi, uye zvimwe zvigunwe zvina zvinonongedza kugwara kwesimba remagetsi rakakonzeresa mu conductor).
Nhungamiro yesimba pane conductor inotarirwa nemutemo wekuruboshwe. Aya maviri emagetsi emagetsi anoumba torque inoshanda pane armature, iyo inonzi electromagnetic torque mumuchina wemagetsi unotenderera. Iyo nzira ye torque inotarisana newachi, mukuyedza kuita kuti armature itenderere inoenderana newachi. Kana iyi electromagnetic torque ichikwanisa kukunda torque yekupikisa pane armature (senge torque yekupikisa inokonzereswa nekukwesha uye mamwe ma torque), iyo armature inogona kutenderera ikanangana newachi nzira.