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12th Physics


CHAPTER ONE-ELECTRIC CHARGES AND FIELDS: 1.1 Introduction. 1.2 Electric Charges. 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 Application 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. 2.16 Van de Graaff Generator.
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 Laws. 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.
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 Electromagnet.
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 Generato.
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.


CHAPTER NINE-RAY OPTICS AND OPTICAL INSTRUMENTS: 9.1 Introduction. 9.2 Reflection of Light by Spherical Mirrors. 9.3 Refraction.
9.4 Total Internal Reflection. 9.5 Refraction at Spherical Surfaces and by Lenses. 9.6 Refraction through a Prism. 9.7 Dispersion by a Prism. 9.8 Some Natural Phenomena due to Sunlight. 9.9 Optical Instruments.
CHAPTER TEN-WAVE OPTICS: 10.1 Introduction. 10.2 Huygens Principle. 10.3 Refraction and reflection of plane waves using Huygens Principle. 10.4 Coherent and Incoherent Addition of Waves. 10.5 Interference of Light Waves and Young’s Experiment. 10.6 Diffraction. 10.7 Polarisation.
CHAPTER ELEVEN-DUAL NATURE OF RADIATION AND MATTER: 11.1 Introduction. 11.2 Electron Emission. 11.3 Photoelectric Effect. 11.4 Experimental Study of Photoelectric Effect. 11.5 Photoelectric Effect and Wave Theory of Light. 11.6 Einstein’s Photoelectric Equation: Energy Quantum of Radiation.11.7 Particle Nature of Light: The Photon. 11.8 Wave Nature of Matter. 11.9 Davisson and Germer Experiment.
CHAPTER TWELVE-ATOMS: 12.1 Introduction. 12.2 Alpha-particle Scattering and Rutherford’s Nuclear Model of Atom. 12.3 Atomic Spectra.
12.4 Bohr Model of the Hydrogen Atom. 12.5 The Line Spectra of the Hydrogen Atom. 12.6 DE Broglie’s Explanation of Bohr’s Second Postulate of Quantisation.
CHAPTER THIRTEEN-NUCLEI: 13.1 Introduction. 13.2 Atomic Masses and Composition of Nucleus. 13.3 Size of the Nucleus. 13.4 Mass-Energy and Nuclear Binding Energy. 13.5 Nuclear Force. 13.6 Radioactivity. 13.7 Nuclear Energy.
CHAPTER FOURTEEN-SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS: 14.1 Introduction. 14.2 Classification of Metals, Conductors and Semiconductors. 14.3 Intrinsic Semiconductor. 14.4 Extrinsic Semiconductor. 14.5 p-n Junction. 14.6 Semiconductor diode. 14.7 Application of Junction Diode as a Rectifier. 14.8 Special Purpose p-n Junction Diodes. 14.9 Junction Transistor. 14.10 Digital Electronics and Logic Gates. 14.11 Integrated Circuits.
CHAPTER FIFTEEN-COMMUNICATION SYSTEMS: 15.1 Introduction. 15.2 Elements of a Communication System. 15.3 Basic Terminology Used in Electronic Communication Systems. 15.4 Bandwidth of Signals. 15.5 Bandwidth of Transmission Medium. 15.6 Propagation of Electromagnetic Waves. 15.7 Modulation and its Necessity. 15.8 Amplitude Modulation. 15.9 Production of Amplitude Modulated Wave. 15.10 Detection of Amplitude Modulated Wave.

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