Txhua yam khoom siv, cov khoom siv, lossis cov cuab yeej ua raws li Ohm txoj cai, qhov twg tam sim no los ntawm lub cuab yeej yog proportional rau qhov voltage thov, yog lub npe hu ua ohmic khoom lossis ohmic tivthaiv. Txhua yam khoom lossis cov khoom uas tsis ua raws li Ohm txoj cai yog lub npe hu ua cov khoom siv tsis yog lossis cov khoom tsis yog nonohmic.
Cov khoom siv ohmic yog dab tsi?
Ohmic cov ntaub ntawv yog cov khoom siv uas qhov voltage thiab tam sim no yog proportional - ob npaug ntawm qhov sib txawv muaj peev xwm doubles tus tam sim noQhov tsis tu ncua ntawm proportionality yog hu ua qhov tsis kam, uas yog txhais los ntawm Ohm txoj cai.: Cov chav nyob ntawm qhov tsis kam yog Volts / Amperes, lossis Ohms ().
Ohmic thiab cov khoom tsis yog ohmic yog dab tsi?
Cov cov khoom uas ua raws li ohm txoj cai yog lub npe hu ua ohmic khoom thaum cov khoom uas tsis ua raws li ohm txoj cai tau hais tias yog cov khoom tsis yog ohmic.
Koj paub li cas yog cov khoom siv ohmic?
Ib tus resistor yog 'Ohmic' yog tias qhov hluav taws xob hla ntawm qhov resistor yog nce, daim duab ntawm qhov hluav taws xob piv rau tam sim no qhia tau hais tias ib txoj kab ncaj nraim (qhia qhov tsis tu ncua). Txoj kab nqes ntawm txoj kab yog tus nqi ntawm qhov tsis kam. Lub resistor yog 'tsis-Ohmic' yog tias daim duab ntawm qhov hluav taws xob piv rau tam sim no tsis yog ib txoj kab ncaj nraim.
Cov khoom siv ohmic thiab tsis yog ohmic yog dab tsi muab piv txwv rau txhua tus?
Piv txwv ntawm cov khoom siv ohmic yog: ib lub xaim, cua sov los yog lub resistor Cov cuab yeej uas tsis ua raws li ohm txoj cai yog lub npe hu ua cov khoom tsis yog ohmic (piv txwv li qhov tsis kam yog sib txawv rau qhov sib txawv tam sim no dhau los ntawm nws). Piv txwv ntawm cov khoom siv tsis yog ohmic yog: thermistor, siv lead ua rectifiers, lub tshuab nqus tsev thiab lwm yam.
