Gwajin zubewar yanzu

Yayyo halin yanzu na kayan aikin gida yana nufin zubewar halin yanzu da aka auna ta na'urar lantarki ƙarƙashin aikin ƙarfin lantarki.Don gwadawa.

Ka'idar gwajin ita ce a kwaikwayi rashin lafiyar jikin mutum.