A cikin da'irar AC, akwai nau'ikan wutar lantarki iri biyu da ake bayarwa ga kaya daga wutar lantarki: ɗayan ƙarfin aiki ne ɗayan kuma ƙarfin amsawa.Lokacin da nauyin ya kasance mai juriya, ƙarfin da ake cinyewa yana aiki ne mai aiki, lokacin da nauyin ya zama capacitive ko inductive load, amfani yana da ikon amsawa.Wutar lantarki mai aiki da halin yanzu a lokaci ɗaya (Ikon AC shine bambanci tsakanin ƙarfin aiki da mai amsawa), lokacin da ƙarfin lantarki ya wuce na yanzu, yana da inductive reactive power;lokacin da halin yanzu ya wuce ƙarfin lantarki, yana da capacitive reactive power.

Ƙarfin aiki shine ƙarfin lantarki da ake buƙata don kiyaye aikin yau da kullun na kayan lantarki, wato, jujjuya wutar lantarki zuwa wasu nau'ikan makamashi (makamashi, makamashin haske, zafi) na wutar lantarki.Misali: kilowatts 5.5 na injin lantarki shine kilowatts 5.5 na makamashin lantarki ana canza shi zuwa makamashin injina, yana tuki famfo don fitar da ruwa ko masussukar injin;Za a canza kayan aikin hasken wuta daban-daban zuwa makamashin haske, don mutane su rayu da yin aiki da hasken wuta.

Reactive ikon ne mafi m;ita ce wutar lantarki da ake amfani da ita don musayar wutar lantarki da filayen maganadisu a cikin da'ira da kuma kafawa da kuma kula da filin maganadisu a cikin kayan lantarki.Ba ya aiki a waje, amma yana canzawa zuwa wasu nau'ikan makamashi.Duk wata na'urar lantarki mai na'urar lantarki na lantarki tana cinye ƙarfin amsawa don kafa filin maganadisu.Misali, fitilar mai walƙiya mai 40-watt tana buƙatar fiye da watts 40 na ƙarfin aiki (ballast shima yana buƙatar cinye wani yanki na ƙarfin aiki) don fitar da haske, amma kuma yana buƙatar kusan ƙarfin amsawa 80 don nada ballast don kafa madadin maganadisu. filin.Domin ba ya yin aikin waje, kawai a kira shi "reactive".