phy 12

Class 12 – Physics


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CLASS  12 – PHYSICS with following units explained in details :Unit I. Electrostatics, Unit II. Current Electricity, Unit III. Magnetic Effects of Current and Magnetism, Unit IV. Electromagnetic Induction and Alternating Currents, Unit V. Electromagnetic Waves, Unit VI. Optics,Unit VII. Dual Nature of Matter and Radiation, Unit VIII. Atoms and Nuclei, Unit IX. Electronic Devices, Unit X. Communication Systems


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Unit I. Electrostatics 

Electric Charge and Coulomb’s law, Electric Field, Electric Potential, Electric Dipole, Gauss’s Law, Capacitance, Capacitor, Dielectrics

Unit II. Current Electricity

Electric Current, Ohm’s Law, Combination of resistances, Electromotive Forces, Kirchhoff ’s laws, Heating Effect  of Electric current, Electrical devices I, Electrical devices II

Unit III. Magnetic Effects of Current and Magnetism 

Magnetic field due to electric current, Biot Savart’s Law, Ampere circuital law, Motion of charged particles in electric and magnetic field, Torque on a current loop in uniform magnetic field, Permanent Magnet, Earth’s Magnetism, Classification of magnetic materials

Unit IV. Electromagnetic Induction and Alternating Currents 

Electromagnetic Induction, Self Induction and Mutual Induction, Transient Current, Alternating Current and its Characteristics, A.C.Circuits and Phasor diagram

Unit V. Electromagnetic Waves

Electromagnetic spectrum, X – rays

 Unit VI. Optics 

Compton scattering, Reflection of light by spherical mirror, Mirror formula, Laws of refraction of light, Total internal reflection, Refraction at spherical surfaces, Refraction through a lens, Lens maker’s and lens equation, Image formation, Refraction through prism, Dispersion of light, Human Eye, Magnifying power of optical instruments and telescope, Microscope, Interference, Diffraction of light, Polarisation of light

Unit VII. Dual Nature of Matter and Radiation 

Photoelectric effect, De Broglie’s Equation, Different theories about nature of light

Unit VIII. Atoms and Nuclei 

Rutherfords α – particle scattering, Bohr’s Theory of Hydrogen Atom, Nuclei  and their properties, Radioactivity, Mechanism of radioactive decay, Nuclear fission, Nuclear fusion

Unit IX. Electronic Devices 

Energy bands in solids, Semiconductors, pn junction, Semiconductor diode, Transistor and its action, Transistor as an amplifier, Three basic logic gates and integrated circuits

Unit X. Communication Systems

Elements of communication, Modulation, Space communication



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