Class 12 Physics Part 1

Charge and its properties, Coulomb's law and superposition, the electric field and field lines, flux, the electric dipole and the torque on it, and Gauss's law applied to a long wire, an infinite sheet and a spherical shell.

Electric potential and potential difference, potential due to a point charge, a dipole and a system, equipotential surfaces, potential energy, the behaviour of conductors and dielectrics, capacitance, the parallel plate capacitor, combinations of capacitors and stored energy.

Electric current and current density, drift velocity and relaxation time, Ohm's law and its limits, resistivity and its temperature dependence, cells with emf and internal resistance, Kirchhoff's rules, the Wheatstone bridge and the potentiometer.

The magnetic force on a moving charge and on a current element, motion of charges in a magnetic field, the Biot-Savart law and its applications, Ampere's law and the solenoid, force between parallel currents, torque on a current loop and the moving coil galvanometer.

The bar magnet as a magnetic dipole, the field of a dipole and its analogy with a current loop, Gauss's law for magnetism, the earth's magnetic elements, magnetisation and magnetic intensity, and the classification of dia, para and ferromagnetic materials with hysteresis.

Magnetic flux, Faraday's law and Lenz's law, motional emf, eddy currents, self and mutual inductance, the energy stored in a magnetic field, and the AC generator.

AC voltage and current, rms and peak values, phasors, the behaviour of resistors, inductors and capacitors in an AC circuit, the series LCR circuit and resonance, power in AC circuits with the power factor, LC oscillations and the transformer.

Displacement current and the Maxwell Ampere law, the nature and properties of electromagnetic waves, the speed of light from mu0 and epsilon0, their transverse character, energy and momentum, and the electromagnetic spectrum.