Comprehensive study portal for Electrodynamics, Magnetism, Optics, Modern Physics, and Semiconductor Electronics. Master core concepts, stepwise derivations, vector diagrams, and prepare for CBSE Board Exams & JEE/NEET.
Coulomb's Law, superposition principle, electric field lines, electric dipole axial & equatorial fields, electric flux, and Gauss's law applications.
Conservative fields, electric potential derivations, equipotential surfaces, conductor shielding, dielectric polarisation, and capacitance stored energy.
Drift velocity, mobility, Ohm's law microscopic derivation, temperature dependence of resistance, cells in series/parallel, Kirchhoff's laws & Wheatstone bridge.
Magnetic Lorentz force, helical motion, Biot-Savart law, circular loop axis field, Ampere's circuital law, solenoid, force between parallel currents, and galvanometer.
Bar magnet as equivalent solenoid, magnetic field lines, Gauss's law for magnetism, magnetisation, magnetic intensity, susceptibility, and Dia/Para/Ferromagnetism.
Faraday & Henry experiments, magnetic flux, Faraday's law, Lenz's law energy conservation, motional EMF, self & mutual inductance, and AC generator.
AC through R, L, C, Phasor diagrams, RMS current & voltage, Series LCR resonance, quality factor, power in AC circuits, wattless current, and transformers.
Inconsistency in Ampere's law, Maxwell's displacement current, Maxwell equations, transverse character of EM waves, speed of light, and the electromagnetic spectrum.
Spherical mirrors, refraction, TIR & optical fibres, lens maker's formula, thin lens combinations, refraction through prism, compound microscope, and telescopes.
Open Chapter 9Huygens principle, wave proof of Snell's law, coherent sources, Young's double-slit experiment fringe width, single slit diffraction, and polarisation by Malus's law.
Electron emission, photoelectric effect laws, Einstein's photoelectric equation, Millikan's constant, photon particle properties, and de Broglie matter waves.
Geiger-Marsden alpha scattering, Rutherford atomic model, Bohr's postulates, hydrogen energy levels, emission spectral series, and de Broglie standing wave orbits.
Atomic mass unit, discovery of neutron, nuclear radius & constant density, mass defect, binding energy curve, nuclear strong force, nuclear fission, and solar fusion.
Energy band theory, intrinsic & extrinsic semiconductors, p-n junction formation, diode forward/reverse V-I characteristics, half/full-wave rectifiers, and filters.
Try searching for different keywords like "Coulomb", "Current", "Optics", "Semiconductor", "Gauss", or "Bohr".
Every Class 12 Physics chapter follows a structured, textbook-aligned learning path