Physics Part 1 New NCERT XII Class (Original Book) English Medium

Physics Part 1 New NCERT XII Class (Original Book) English Medium

Total Pages :- 306

FOREWORD v

PREFACE xi

CHAPTER ONE

ELECTRIC CHARGES AND FIELDS

1.1 Introduction

1.2 Electric Charge

1.3 Conductors and Insulators

1.4 Charging by Induction

1.5 Basic Properties of Electric Charge

1.6 Coulomb’s Law

1.7 Forces between Multiple Charges

1.8 Electric Field

1.9 Electric Field Lines

1.10 Electric Flux

1.11 Electric Dipole

1.12 Dipole in a Uniform External Field

1.13 Continuous Charge Distribution

1.14 Gauss’s Law

1.15 Applications of Gauss’s Law

CHAPTER TWO

ELECTROSTATIC POTENTIAL AND CAPACITANCE

2.1 Introduction

2.2 Electrostatic Potential

2.3 Potential due to a Point Charge

2.4 Potential due to an Electric Dipole

2.5 Potential due to a System of Charges

2.6 Equipotential Surfaces

2.7 Potential Energy of a System of Charges

2.8 Potential Energy in an External Field

2.9 Electrostatics of Conductors

2.10 Dielectrics and Polarisation

2.11 Capacitors and Capacitance

2.12 The Parallel Plate Capacitor

2.13 Effect of Dielectric on Capacitance

2.14 Combination of Capacitors

2.15 Energy Stored in a Capacitor

CHAPTER THREE

CURRENT ELECTRICITY

3.1 Introduction

3.2 Electric Current

3.3 Electric Currents in Conductors

3.4 Ohm’s law

3.5 Drift of Electrons and the Origin of Resistivity

3.6 Limitations of Ohm’s Law

3.7 Resistivity of Various Materials

3.8 Temperature Dependence of Resistivity

3.9 Electrical Energy, Power

3.10 Combination of Resistors — Series and Parallel

3.11 Cells, emf, Internal Resistance

3.12 Cells in Series and in Parallel

3.13 Kirchhoff’s Rules

3.14 Wheatstone Bridge

3.15 Meter Bridge

3.16 Potentiometer

CHAPTER FOUR

MOVING CHARGES AND MAGNETISM

4.1 Introduction

4.2 Magnetic Force

4.3 Motion in a Magnetic Field

4.4 Motion in Combined Electric and Magnetic Fields

4.5 Magnetic Field due to a Current Element, Biot-Savart Law

4.6 Magnetic Field on the Axis of a Circular Current Loop

4.7 Ampere’s Circuital Law

4.8 The Solenoid and the Toroid

4.9 Force between Two Parallel Currents, the Ampere

4.10 Torque on Current Loop, Magnetic Dipole

4.11 The Moving Coil Galvanometer

CHAPTER FIVE

MAGNETISM AND MATTER

5.1 Introduction

5.2 The Bar Magnet

5.3 Magnetism and Gauss’s Law

5.4 The Earth’s Magnetism

5.5 Magnetisation and Magnetic Intensity

5.6 Magnetic Properties of Materials

5.7 Permanent Magnets and Electromagnets

CHAPTER SIX

ELECTROMAGNETIC INDUCTION

6.1 Introduction

6.2 The Experiments of Faraday and Henry

6.3 Magnetic Flux

6.4 Faraday’s Law of Induction

6.5 Lenz’s Law and Conservation of Energy

6.6 Motional Electromotive Force

6.7 Energy Consideration: A Quantitative Study

6.8 Eddy Currents

6.9 Inductance

6.10 AC Generator

CHAPTER SEVEN

ALTERNATING CURRENT

7.1 Introduction

7.2 AC Voltage Applied to a Resistor

7.3 Representation of AC Current and Voltage by

Rotating Vectors — Phasors

7.4 AC Voltage Applied to an Inductor

7.5 AC Voltage Applied to a Capacitor

7.6 AC Voltage Applied to a Series LCR Circuit

7.7 Power in AC Circuit: The Power Factor

7.8 LC Oscillations

7.9 Transformers

CHAPTER EIGHT

ELECTROMAGNETIC WAVES

8.1 Introduction

8.2 Displacement Current

8.3 Electromagnetic Waves

8.4 Electromagnetic Spectrum

ANSWERS