Inductance yog qhov tshwm sim los ntawm tus neeg xyuas pib tawm tsam cov kev hloov pauv hauv qhov tam sim no ntws los ntawm nws; nws yog txhais raws li qhov piv ntawm qhov induced voltage rau tus nqi ntawm kev hloov ntawm tam sim no uas ua rau nws. Qhov loj me me rau inductance yog ML²T⁻²I⁻², thiab nws chav SI yog henry (H). Ib qho inductance ntawm 1 H qhia tau hais tias tam sim no hloov ntawm tus nqi ntawm ib ampere ib ob induces ib voltage ntawm ib volt.
Qhov tseem ceeb ntawm inductance yog nyob rau hauv kev sib raug zoo piav qhia los ntawm Maxwell qhov sib npaug hais txog qhov tsim hluav taws xob los ntawm kev hloov magnetic teb. Thaum cov tam sim no nyob rau hauv ib tug neeg xyuas pib hloov, cov sib nqus magnetic teb kuj hloov; Raws li Faraday txoj cai ntawm electromagnetic induction thiab Lenz txoj cai, qhov no ua rau lub zog hluav taws xob (EMF) uas tawm tsam qhov kev hloov pauv tam sim no. Kev them nyiaj wireless siv ze ntawm - teb induction-tshwj xeeb, inductive coupling- kom hloov lub zog.
Lub sij hawm "inductance" yog coined los ntawm Oliver Heaviside nyob rau hauv lub Tsib Hlis 1884. kuv lub teb chaws tus thawj inductance tus qauv ntaus ntawv yog tsim los pib nyob rau hauv 1971, ua tiav nyob rau hauv 1975, certified nyob rau hauv 1979, thiab koom nyob rau hauv lub CCEM -K3 thoob ntiaj teb kev sib piv nyob rau hauv 1990. Sunlord 50 patentable ntaub ntawv nyob rau hauv ib qho kev tivthaiv combining siab inductance nrog rau qhov zoo tshaj plaws.