Answer
A cikin maɓuɓɓugan ruwan raƙuman raƙuman ruwa, ɗimbin yadudduka na labulen waya suna cikin hulɗa kai tsaye. Lokacin da aka matsa ruwan bazara, waɗannan yadudduka suna zamewa da juna, suna haifar da juzu'i. Wannan jujjuyawar tana bayyana a matsayin hysteresis a cikin lanƙwasa-daukar nauyi, inda kaya yayin bugun bugun jini ya fi nauyi yayin bugun bugun dawowa a daidai tsayi. Ƙarfin da aka rasa shine $E_{ɓataccen} = \oint P \cdot df$. A cikin tsarukan tsauri mai ƙarfi (misali, injectors na mai), wannan juzu'i yana haifar da zafi kuma yana iya haifar da damping. Idan ba a yi la'akari da shi ba, zafi zai iya haifar da ƙananan zafin jiki, wanda zai haifar da shakatawa na farko. Ana buƙatar lubrication (misali, shafi na PTFE ko nutsar da mai) don rage girman wannan tasirin kuma ya hana lalacewa tsakanin yadudduka na gida.
