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Toshkent – 2023 1- ma’ruza mashg’uloti. Mavzu: kirish. Mexanika. Kinematika asoslari
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| bet | 17/40 | | Sana | 22.02.2024 | | Hajmi | 15,65 Mb. | | #160565 |
Bog'liq 3-KURS FIZIKA (5-yillik sirtqi uchun)MASHG‘ULOTNING MAQSADI - Talabalarga tinch holatdagi va harakatdagi elektr zaryadlari haqida, ularning xossa va xususiyatlari, elektr toki haqida, uning turli moddalarda o‘tishi. Om qonunlari, tokning ishi va quvvati, elektr tokining amalda qo‘llanilishi, ahamiyati haqida bilimlar berishdan iborat.
MAVZUGA OID TAYANCH TUSHUNCHALAR
Elektrostatika va uning asosiy tushunchalari;
Kulon qonuni;
Elektr maydon, uning kuchlanganligi, potensiali.
Elektr toki;
Turli moddalarda elektr toki;
Zanjirning bir qismi uchun Om qonuni;
To‘la zanjir uchun Om qonuni;
Tokning ishi va quvvati.
MAVZUNING QISQACHA MAZMUNI
KULON QONUNI- Zaryadning 2 ta turi bor,har bir turi turli xil miqdorda keladi. Zaryadning o’lchov birligini Kulon quyidagicha aniqladi: Kulon zaryad miqdorini shunday 9*10⁹N kuch bilan 2 nuqtaviy predmet o’rtasida yuz beradi,masofasi 1m va zaryadlari 1C dan iborat. zaryadning miqdoriy belgisi q dir. Kuzatishlardagi ekspremental katta jism quyidagicha bayon qilinadi. Magnit maydonidagi kuchlar 2 ta nuqta o’rtasida ta’sir qiladi, markazda jismlar zaryadlanadi,tenglama quyidagicha ifodalanadi. F=kqq/r² k-proporsionallik koeffitsiyentidir. k=9*10⁹N*m²/C. Kuchlar tortishadi agarzaryadlar turli ishorali bo’lsa, va agar zaryadlar bir xil ishorali bo’lsa itarishadi.
The coulomb
Although there are only two types of charge, each type can come in
different amounts. The metric unit of charge is the coulomb (rhymes with“drool on”), defined as follows:
One Coulomb (C) is defined as the amount of charge such that a forceof 9.0x109N occurs between two pointlike objects with charges of 1 C separated by a distance of 1 m.The notation for an amount of charge is q. The numerical factor in thedefinition is historical in origin, and is not worth memorizing. The definition is stated for pointlike, i.e. very small, objects, because otherwisedifferent parts of them would be at different distances from each other.
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