Official Answer
Answer
Ruwan raƙuman ruwa na 'Shim End' yana da shimfidar wuri mai faɗin digiri 360 a kowane ƙarshen, yayin da bazara ta 'Plain End' ta ƙare a kololuwar igiyar ruwa. Ƙimar Ƙarshen Shim tana ba da nau'i na $360 ^{\circ}$ $ rarraba kaya $P$ zuwa bangaren mating, yadda ya kamata ya kawar da ma'auni mai alaƙa da ƙarewar fili. Ta hanyar lissafi, wannan yana rage damuwa na gida $\sigma_{lamba}$ kuma yana hana bazara daga 'tono' cikin kayan gidaje masu laushi (kamar aluminum). Daga hangen nesa, shim yana jujjuyawa azaman tushe mai tushe, yana tabbatar da cewa adadin masu aiki yana jujjuyawa $Z$ ya kasance mai dorewa a cikin kewayon juyewa, yayin da ƙarshen ƙarshen zai iya 'mirgina' kuma ɗan canza ingantaccen $N $ yayin da suke karkata zuwa wurin zama.
