विद्युत धारा  हिन्दी देवनागरी में पढ़ें।

(angrezi:Electric Current) avesh ke pravah ko vidyut dhara kahate hain. thos chalakon men avesh ka pravah ilektraaunon ke ek sthan se doosare sthan tak sthanantaran ke karan hota hai, jabaki dravon jaise- amlon, ksharon v lavanon ke jaliy vilayanon tatha gaison men yah pravah ayanon ki gati ke karan hota hai. sadharanah vidyut dhara ki disha dhan avesh ke gati ki disha ki or tatha rin avesh ke gati ki viparit disha men mani jati hai. thos chalakon men vidyut dhara ki disha, ilektraaunon ke pravah ki disha ke viparit mani jati hai. es. aee. paddhati men vidyut dhara ka matrak empiyar hota hai. yadi nirvath men sthit do sidhe, lambe v samantar taron men, jinake bich ki doori. mitar hai aur ek hi vidyut dhara pravahit karane par taron ke bich unaki prati mitar lambaee men 2 x 10-7 nyootan ka bal utpann ho to taron men pravahit dhara 1 empiyar hoti hai. kisi chalak tar se yadi 1 empiyar vidyut dhara pravahit ho rahi hai to isak arth yah hai ki us chalak tar men ek sekend men 6.25 x 1018 ilektraaun ek sire se pravesh karate hain tatha itane hi ilektraaun ek sekend men doosare sire se nikal jate hain. yadi kisi paripath men dhara ek hi disha men bahati hai to use disht dhara kahate hain tatha yadi dhara ki disha lagatar badalati rahati hai to use 'pratyavarti dhara' kahate hain.


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