الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

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Lectures in General PhysicsCapacitors and Capacitanceالمكثف الكهربيوالسعة الكهربيةيعتبر هذا الفصل تطبيقاً‏ على المفاهيم الأساسية للكهربية الساآنة،‏ حيث سنرآز علىوهي من الأجهزة الكهربية التي لا تخلوالتعرف على خصائص المكثفاتمنها أية دائرة آهربية.‏ ويعد المكثف بمثابة مخزن للطاقة الكهربية.‏ والمكثف عبارة عنموصلين يفصل بينهما مادة عازلة.‏CapacitorsDr. Hazem Falah Sakeek
Capacitors and capacitance6.1 CapacitorA capacitor consists of two conductors separated byan insulator Figure 6.1. The capacitance of thecapacitor depends on the geometry of theconductors and on the material separating thecharged conductors, called dielectric that is aninsulating material. The two conductors carry equaland opposite charge +q and -q.Insulator1+q 1-qConductorFigure 6.16.2 Definition of capacitanceThe capacitance C of a capacitor is definedas the ratio of the magnitude of the chargeon either conductor to the magnitude of thepotential difference between them as shownin Figure 6.2.qC = (6.1)VThe capacitance C has a unit of C/v, whichis called farad FF = C/vThe farad is very big unit and hence we use submultiples of farad1µF = 10 -6 F1nF = 10 -9 F1pF = 10 -12 FCapacitorElectric fieldBatteryFigure 6.2The capacitor in the circuit is represented by the symbol shown in Figure6.3.Figure 6.3www.hazemsakeek.com
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LECTURES INGENERAL PHYSICSPart TwoE
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محاضرات في الفيزيا
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ContentsChapter (1) Electrostatic1.
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4.5 Energy stored in a charged capa
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Introduction to ElectrostaticsPart
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Introduction to ElectrostaticsIntro
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Introduction to ElectrostaticsWe ha
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Introduction to Electrostaticssame
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Introduction to Electrostatics1.2 P
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Introduction to ElectrostaticsRubbe
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Coulomb’s Lawقانون آولو
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Coulomb’s LawCoulomb’s lawقا
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Coulomb’s Law2.2 Calculation of t
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Coulomb’s Lawq 1 &q 3نتيجة
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Coulomb’s Lawx∑∑FFxy= 2 × 0.
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Coulomb’s LawExample 2.4A charge
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Coulomb’s LawExample 2.5Two fixed
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Coulomb’s Law2.3 Problems2.1) Two
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Lectures in General Physicsالكه
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Lectures in General PhysicsElectric
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3.3 The direction of E rLectures in
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Lectures in General PhysicsExample
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Lectures in General PhysicsE y = E
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Notice that the rule of drawing the
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Lectures in General Physics3.8 Solu
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Lectures in General PhysicsE y = -E
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Lectures in General Physics3.10 Pro
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Lectures in General Physics3.16) Ch
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Electric FluxElectric Flux4.1 The E
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Electric Flux4.1 The Electric Flux
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Electric Fluxوالمقصود ب ne
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Electric FluxExample 4.2In figure 4
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Electric Flux1 q∴ E =(4.6)24πε
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Electric Flux4.7 Applications of Ga
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Electric FluxA linear charge distri
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Electric FluxAn insulated conductor
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Electric FluxFor r<aAaRrFigure 4.17
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Electric Flux4.8 Solution of some s
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المجالElectric Fluxلاحظ
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Electric FluxExample 4.7Consder a l
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Electric Flux4.9 Problems4.1) An el
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Page 146 and 147: 6.3.2 Cylindrical capacitorLectures
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Lectures in General Physicsheating
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Direct Current CircuitsDirect Curre
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Direct Current Circuits8.1 Electrom
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Direct Current Circuits8.2 Finding
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Direct Current CircuitsExample 8.1I
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Direct Current Circuits8.3 Kirchhof
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Direct Current CircuitsHints for so
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Direct Current Circuits+ξ 1 - IR 1
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Direct Current Circuitsthe current
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Direct Current Circuits8.5 Multi-Lo
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Direct Current Circuitsξ 1ξ 2abab
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Direct Current CircuitsExample 8.7I
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Direct Current CircuitsFrom equatio
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Direct Current CircuitsIn figure (c
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Direct Current Circuits8.6 RC Circu
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Direct Current CircuitsNote that th
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Direct Current CircuitsExample 8.11
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Direct Current CircuitsExample 8.14
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Direct Current Circuits8.7 Electric
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Direct Current Circuits8.7.3 The po
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Direct Current Circuits8.11) (a) Fi
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Direct Current Circuits8.22) Consid
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Multiple choice question for part 2
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Lectures in General PhysicsAPPENDIC
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Lectures in General PhysicsUndersta
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Lectures in General PhysicsThe posi
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Lectures in General Physicsيمر
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Lectures in General Physicsinexpens
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Lectures in General PhysicsBatteryB
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Lectures in General PhysicsThere ar
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Lectures in General PhysicsAPPENDIX
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Lectures in General PhysicsChapter
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Lectures in General PhysicsSI Deriv
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LengthMetric and Imperial Measures1
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Lectures in General PhysicsPeriodic
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Lectures in General PhysicsOpticsOp
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Lectures in General PhysicsAmerican
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APPENDIX (E)BibliographyLectures in
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APPENDIX (F)IndexLectures in Genera
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الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

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