Magnet bar leydi leh waa nooc bir bir ah oo u qaabeysan leydi.
Cabirka Bir-mareennada Bar leydi leh
Cabbirrada birlababka leydiga ah waxaa had iyo jeer lagu qeexaa sida dhererkooda x ballaca x qoto dheer.
Dhererka bir bir-xagal ah ayaa tilmaamaysa masaafada u dhexeysa labada geesood ee ugu gaaban waxayna ku kala duwanaan kartaa 8 mm (0.3 in.) ilaa 152 mm (6 in.).
Ballaca birlab-xagal ah waa masaafada u dhexeysa labada dhibcood ee toosan ee ugu ballaaran wuxuuna ku kala duwanaan karaa 3 mm (0.1 in.) ilaa 101 mm (4 in.).
Qoto dheer ee bir bir leydi ah waxay tilmaamaysaa qoto dheer ee dhamaadka bir bir. Dhererku wuu kala duwanaan karaa 3 mm (0.1 inch) ilaa 25.4 mm (1 inji).
Soojiidashada birlabku waxay u dhaxaysaa 0.35 kg ilaa 23.7 kg.
Cabbirka ugu fiican ee bir-xagal ah oo bir ah waa 75 x 11 x 6 mm (2.9 x 0.4 x 0.3 inji). Tani waa cabbirka caadiga ah ee codsiyada waxbarashada waxaana inta badan loo isticmaalaa bir bir-xagal ah.
