Faradayev zakon elektromagnetske indukcije
Transcript of Faradayev zakon elektromagnetske indukcije
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Biot-Savartov zakon
20 sin
4 rdlIdB
P
r
dB
dl
I
30
4 rrldIBd
Integralni oblik B-S zakona
BdB
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Faradayev zakonelektromagnetne indukcije
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Michael FaradayMichael Faraday 1791-18671791-1867
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.. polje je sposobnost prostora .. polje je sposobnost prostora da bude uznemirenoda bude uznemirenodjelovanjem izvora u njemu...djelovanjem izvora u njemu...
M.Faraday pod utjecajem filozofije R.Boškovića
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2001 New Year's Day Concert from Vienna
The 2001 concert was conducted by Nikolaus Harnoncourt.
First half Johann Strauss I Radetsky March, Op/ 228Joseph Lanner Die Schönbrunner, Waltz, Op. 200 Jägers Lust, Jagd-Galop, Op.82Johann Strauss II Morgenblätter, Waltz, Op. 279 Elektro-magnetische Polka, Op. 110 Electrofor, Polka schnell. Op. 297Second half Johann Strauss II Overture, Eine Nacht in VenedigJosef Strauss Harlequin Polka, Op. 48
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Kroz vodič u promjenljivom magnetnom polju
naboj se počne gibati (poteče struja).
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M.Faraday predaje u Royal Institution 1856.g.U publici je Princ od Wallesa, budući kralj Edward VII.
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Faradayev zakonelektromagnetne indukcije
dtd B
SdBdtdldE
ldE
Elektromotorni napon Tok magnetnog polja
SdBB
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SdBdtdldE
Električno polje Magnetno polje inducirano u vodiču
promjenljivo
POSLJEDICA UZROK
Lenzovo pravilo
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Lenzovo pravilo
Posljedica se suprotstavlja uzroku
Smjer inducirane struje određuje činjenica da je
inducirana B uvijek smjera suprotna od uzročne B
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N
S
BB
vc
BvqF
Tumačenje elm. indukcije Lorenzovom silom
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Serway R.A., Jewett J.W. Physics for scientists and engineer
Generatori u elektrani
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Serway R.A., Jewett J.W. Physics for scientists and engineer
Izvori napona
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Serway R.A., Jewett J.W. Physics for scientists and engineer
Santana
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