Inxalenye enkulu kunye nebalulekileyo ye-MRI & NMR yimagnethi.Iyunithi echonga eli bakala lamagnetic libizwa ngokuba yiTesla.Enye iyunithi eqhelekileyo yokulinganisa isetyenziswa kwiimagnethi yiGauss (1 Tesla = 10000 Gauss).Okwangoku, iimagnethi ezisetyenziselwa ukucinga nge-magnetic resonance imaging zikuluhlu lwe-0.5 Tesla ukuya kwi-2.0 Tesla, oko kukuthi, i-5000 ukuya kwi-20000 Gauss.