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10-RLC krugovi.pdf

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Kako odrediti iznos induciranognapona u drugoj zavojnici?Neka je:l = duljina prve zavojniceS = Površina presjeka prve zavojniceN 1 = Broj namotaja prve zavojniceN 2 = Broj namotaja druge zavojniceµ = Permeabilnost jezgre zavojnicePromjenjiva struja I 1 stvara mag. tok koji prolazi i kroz drugu zavojnicu. U drugoj zavojnici se inducira EMS: dΦ2ε2= −N2dtN1I1Tok = ? Φ2= Φ1= Φ = BS Φ = µ Sld N1I1ε2= −N⎛2µ S⎞ µ SN1N2 dI1dI1⎜ ⎟ = − ε2∼dt ⎝ l ⎠ l dtdt

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