Kaw lub voj voltage nce
Qhov kev sib txuas ntawm lub voj voos kaw tau hais txog qhov hluav taws xob qhov hluav taws xob qhov tseem ceeb ntawm tag nrho cov Circuit Court tom qab lub tshuab txuas hluav taws xob (lossis cov khoom sib txuas) txuas nrog rau cov lus tsis zoo, uas yog ib qho kev hais tawm ntawm qhov muaj peev xwm ua kom muaj zog ntawm Circuit Court amplification. Lub npe: qhov voltage nce = 20lg (Uo / Ui).