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IPA-FISIKA : Energi dan Daya Listrik

PR buat UB

yehezkiel arv

on 19 November 2012

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Transcript of IPA-FISIKA : Energi dan Daya Listrik

Energi dan Daya Listrik FISIKA Energi Listrik Energi yang dihasilkan dari aliran muatan listrik dalam suatu rangkaian listrik tertutup disebut dengan energi listrik Daya Listrik Banyaknya energi listrik yang digunakan oleh suatu alat listrik setiap satuan waktu disebut daya listrik(P) 3 Rumus Daya Listirk V = V . R Hubungan Satuan Energi dan Daya Dalam satuan sistem internasional (SI) daya listrik dinyatakan dengan watt Rumus : W = Q V
Q = muatan listrik yang melewati
V = tegangan listrik lampu ( volt)
W = energi listrik ( joule )
Rumus : P = W / T atau P = V . I P = V . I I = V / R Watt = detik = joule ( J ) Watt = jam = watt.jam ( WJ ) /
watt.hour ( WH)
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