fd01 elektromagnetik upload · pdf file8/22/2009 1 elektromagnetika : elektrostatika...
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Elektromagnetika :
ElektrostatikaElektrodinamikaKemagnetan
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Referensi http://www.4shared.com
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Fisika Dasar
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Muatan & Materi : Elektromagnetisme :
ambar yg digosok menarik potongan a ba yg d goso e a poto gajerami kecil. Kenapa koq bisa ?Penemuan batuan magnetik alamiOersted : arus listrik saling berpengaruh thd arah kompasPerintis : M. Faraday (diabadikan namanya sbg satuan Kapasitor Listrik farad) Maxwell :Listrik farad). Maxwell : perumusan elektromagnetika, cahaya bersifat sbg Elektromagnetik
konsep fotodioda & fiber-optic
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Muatan Listrik
Penggosokan batang/tongkat akan memindahkan muatan listrik ke tongkat tsbmemindahkan muatan listrik ke tongkat tsb, dg waktu dan kuantitas tertentu (singkat)Benyamin Franklin : notasi Positip-NegatipMuatan sejenis : tolak-menolakMuatan tak-sejenis : tarik-menarikMuatan tak sejenis : tarik menarikKondisi netral : jumlah (+) & (-) sama
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Konduktor & Isolator
Konduktor : logam, cairan, manusia, bumi, dllIsolator berlawanan dg konduktorSemi Konduktor : silikon, germanium, dll
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Isolator
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Hukum Coulomb
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Muatan Terkuantitasi
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3 gaya
Gaya Listrik muatan listrikGaya Gravitasi massa bendaGaya Nuklir ikatan inti atom (fusi & fisi)
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Medan Listrik (posisi & besarnya)
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Arah Medan Listrik
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Garis-Garis Gaya
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Garis-Garis Gaya
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Garis-Garis Gaya
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Garis-Garis Gaya
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Garis-Garis Gaya
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Pendalaman : Muatan 3D
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Fisika Dasar
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Arus Listrik
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Arus listrik bukanlah vektor
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Rumusannya
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Hukum Ohm
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Resistivitas rho=ρ
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Konduktivitas sigma=σ
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Aplikasi
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Fisika Dasar
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Peralatan Berbasis Magnet
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Peralatan Berbasis Magnet
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Magnet Bumi
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Pola Kemagnetan
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Arah Gaya MagnetKeseragaman arah akan menentukan seberapa kuat Gaya Magnetnyakuat Gaya Magnetnya
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Medan Magnet oleh Arus Listrik
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Generator Listrik
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Hukum Biot Savart
Medan magnet pada sebuah titikberjarak r dari elemen arus dssebanding dengan besar arus I,berbanding terbalik dengank d t j k d b tkwadrat jaraknya dan bergantungpada sinus sudut antara arah arusdan arah posisi titik itu.
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Arah gaya magnet
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Kisaran Besaran Medan Magnet
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