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Class 12

Physics

52 lessons in 14 chapters, explained in plain words.

Electric Charges and Fields

  1. Electric charge
  2. Coulomb's law
  3. Electric field and field lines
  4. Electric dipole
  5. Electric flux and Gauss's law
  6. Using Gauss's law

Electrostatic Potential and Capacitance

  1. Electrostatic potential
  2. Potential energy and conductors
  3. Capacitors and dielectrics
  4. Combining capacitors and stored energy

Current Electricity

  1. Electric current and Ohm's law
  2. Resistance and temperature
  3. Cells, emf and internal resistance
  4. Kirchhoff's rules and the Wheatstone bridge

Moving Charges and Magnetism

  1. Magnetic force on moving charges
  2. Biot-Savart law
  3. Ampere's circuital law
  4. Forces between currents and torque on loops
  5. The moving coil galvanometer

Magnetism and Matter

  1. The bar magnet and its field
  2. A magnetic dipole in a field
  3. Magnetisation and magnetic materials

Electromagnetic Induction

  1. Faraday's law
  2. Lenz's law
  3. Motional emf
  4. Inductance and the AC generator

Alternating Current

  1. AC through a resistor
  2. AC through inductors and capacitors
  3. Series LCR circuits and resonance
  4. Power in ac circuits and transformers

Electromagnetic Waves

  1. Displacement current
  2. Electromagnetic waves
  3. The electromagnetic spectrum

Ray Optics and Optical Instruments

  1. Reflection by spherical mirrors
  2. Refraction and total internal reflection
  3. Lenses
  4. Refraction through a prism
  5. Optical instruments

Wave Optics

  1. Huygens principle and wavefronts
  2. Interference of light
  3. Diffraction and polarisation

Dual Nature of Radiation and Matter

  1. Photons
  2. The photoelectric effect
  3. Matter waves

Atoms

  1. Rutherford's nuclear model
  2. Bohr's model of hydrogen
  3. Spectral lines of hydrogen

Nuclei

  1. The nucleus
  2. Mass-energy and binding energy
  3. Nuclear reactions, fission and fusion

Semiconductor Electronics: Materials, Devices and Simple Circuits

  1. Semiconductors
  2. The p-n junction diode