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According to New Revised \'E\' Scheme w.e.f. Academic Year 2009-2010, Maharashtra (INDIA) Text Book of Applied Science - Electrical / Electronics Group FY Diploma Sem -II Book ID: 1351. Table of Contents Section-I: Physics 1. Electric Field 1.1 Introduction 1.2 Coulomb’s Inverse Square Law 1.3 Electric Field 1.4 Intensity of Electric Field 1.5 Electric Lines of Force 1.6 Electric Flux 1.7 Electric Flux Density 1.8 Relation between Intensity of Electric Field and Electric Flux Density 1.9 Electric Flux due to a Charge 1.10 Electric Field Intensity due to Charged Sphere 2. Electric Potential 2.1 Introduction 2.2 Potential due to Point Charge using Integration Method 2.3 Potential Difference between Two Points 2.4 Dielectric Strength 3. Condenser 3.1 Introduction 3.2 Capacity of a Condenser 3.3 Principle of a Condenser 3.4 Capacity of a Parallel Plate Condenser 3.5 Series Combination of Condensers 3.6 Parallel Combination of Condensers 3.7 Energy of Charged Condenser 3.8 Types of Condensers 4. Fiber Optics 4.1 Introduction 4.2 Structure and Material of Optical Fiberv 4.3 Total Internal Reflection (TIR) and Critical Angle (qc)v 4.4 Numerical Aperture (NA) and Acceptance Angle (qa)v 4.5 Types of Optical Fiber 4.6 Application of Optical Fibers in Communication System 5. Band Theory of Solids 5.1 Introduction 5.2 Energy Levels in Solids 5.3 Valence, Conduction and Forbidden Band 5.4 Conductors, Semiconductors and Insulators 5.5 Intrinsic and Extrinsic Semiconductors 5.6 P-Type and N-Type 5.7 V-I Characteristic of PN-Junction Diode 6. Introduction to Nanotechnology 6.1 Introduction 6.2 Nanoscale, Nanometer and Nanoparticle 6.3 Nano-Structured Materials 6.4 Application of Nanotechnology Section – II: Chemistry 1. Electrochemistry 1.1 Introduction 1.2 Ionization and Electrolytic Dissociation 1.3 Arrhenius Theory of Electrolytic Dissociation 1.4 Conductivity of an Electrolyte 1.5 Concept of pH and pOH 1.6 Buffer Solution 2. Cell and Batteries 2.1 Introduction 2.2 Some Important Terms 2.3 Classification of Batteries 2.4 Primary Cell 2.5 Secondary Cell 2.6 Difference between Primary and Secondary Cell 2.7 Reserve Battery 2.8 Fuel Cell 2.9 Difference between Fuel Cell and Battery Cell 2.10 Solar Cells 3. Non-Metallic Engineering Materials 3.1 Insulator 3.2 Adhesives 3.3 Ceramics 3.4 Glass Materials 3.5 Optical Fibers 3.6 Conducting Polymers 4. Metals and Alloys 4.1 Metallurgy 4.2 Copper 4.3 Aluminum 4.4 Semiconductors 4.5 Alloys 5. Corrosion 5.1 Introduction 5.2 Definition of Corrosion 5.3 Why Protection of Metals from Corrosion is necessary 5.4 Types of Corrosion 5.5 Atmospheric Corrosion or Chemical Corrosion 5.6 Electrochemical Corrosion or Immersed Corrosion 5.7 Protection of Metals from Corrosion 5.8 Inorganic Protective Coatings 5.9 Methods of Applying Metal Coating 5.10 Non-corrosive Materials 5.11 Organic Coating