Electric Charges and Fields
Coulomb's law, electric field and Gauss's law.
Physics · Class 12
Work through the chapters in order, or continue with the one you need today.
Understand the ideaTry it yourselfReview what needs work
Learn this chapter
Electrostatic Potential and Capacitance
Potential, capacitors and dielectrics.
Current Electricity
Ohm's law, resistivity, Kirchhoff's rules.
Moving Charges and Magnetism
Biot–Savart law, Ampère's law and forces on charges.
Electromagnetic Induction
Faraday's and Lenz's laws, inductance.
Alternating Current
AC circuits, resonance and transformers.
Ray Optics and Optical Instruments
Reflection, refraction, lenses and instruments.
Dual Nature of Radiation and Matter
Photoelectric effect and de Broglie waves.
Semiconductor Electronics
p–n junctions, diodes and rectifiers.
Magnetism and Matter
Model magnets, Earth's field, and material responses using dipoles and magnetisation.
Electromagnetic Waves
Understand how changing fields propagate and organise the electromagnetic spectrum.
Wave Optics
Use Huygens' principle and superposition to explain interference, diffraction, and polarisation.
Atoms
Connect scattering evidence, quantised orbits, and line spectra in early atomic models.
Nuclei
Describe nuclear size, binding, radioactivity, fission, fusion, and energy release.