5XCX-5 kala-soocida birta ah ee wax-qabadka sare leh ayaa loo adeegsadaa in lagu kala saaro biraha ama xinjirowga magnetic (carrada carrada) ee hadhuudhka (xusuusnow: baahida carradu waxay ka kooban tahay magnetism yar).Hadhuudh lagu qaso biraha ama xinjirowga birta ah waxay maraan goob birlabeed xoog leh oo xiran oo xawaare ku habboon leh, marka walaxda tuurto, sababtoo ah xoogga kala duwan ee soo jiidashada garoonka magnetic, si ay u kala soocaan birta, ciidda iyo dhogorta hadhuudhka.