Ƙungiyar Physics ta Grade 11 ta kasance tana yin amfani da sabon kayan aikin mu - bututun katako mai dual - don auna cajin zuwa rabo mai yawa (q/m) na electrons. Electrons sune mai saurin gudu zuwa mita miliyan goma a cikin daƙiƙa guda, kafin a lanƙwasa shi zuwa madauwari ta hanyar maganadisu. Ta hanyar auna diamita na da'irar da na yanzu a cikin coils na filin, q/m za a iya ƙayyade. Ana iya ganin hanyar igiyoyin lantarki guda biyu a matsayin layukan lemu a cikin bututu, sakamakon electrons da ke buga atom ɗin neon da ke cikin ƙananan matsi.
Makaranta ta Duniya 
