Edudel Syllabus 2025 Class 12 Physics

ANNUAL SYLLABUS (2024-25)
CLASS: 12, SUBJECT: PHYSICS (CODE-42)

UNIT I: Electrostatics
Chapter–1: Electric Charges and Fields
Electric charges, Conservation of charge, Coulomb's law-force between two-point charges, forces between
multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due
to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in
uniform electric field. Electric flux, statement of Gauss's theorem and its applications to find field due to
infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell
(field inside and outside).

Chapter–2: Electrostatic Potential and Capacitance

Electric potential, potential difference, electric potential due to a point charge, a dipole and system of
charges; equipotential surfaces, electrical potential energy of a system of two-point charges and of
electric dipole in an electrostatic field.

Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric
polarization, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of
a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a
capacitor (no derivation, formulae only).

UNIT II: Current Electricity

Chapter–3: Current Electricity

Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation
with electric current; Ohm's law, V-I characteristics (linear and non-linear), electrical energy and power,
electrical resistivity and conductivity, temperature dependence of resistance, Internal resistance of a cell,
potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff's rules,
Wheatstone bridge.
UNIT III: Magnetic Effects of Current and Magnetism
Chapter–4: Moving Charges and Magnetism
Concept of magnetic field, Oersted's experiment. Biot - Savart law and its application to current carrying circular
loop. Ampere's law and its applications to infinitely long straight wire. Straight solenoid ( only qualitative
treatment), force on a moving charge in uniform magnetic and electric fields. Force on a current-carrying
conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition
of ampere, torque experienced by a current loop in uniform magnetic field; Current loop as a magnetic

dipole and its magnetic dipole moment, moving coil galvanometer- its current sensitivity and conversion
to ammeter and voltmeter.

Chapter–5: Magnetism and Matter

Bar magnet, bar magnet as an equivalent solenoid ( qualitative treatment only), magnetic field intensity
due to a magnetic dipole ( bar magnet) along its axis and perpendicular to its axis (qualitative
treatment only), torque on a magnetic dipole ( bar magnet) in a uniform magnetic field ( qualitative
treatment only), magnetic field lines. Magnetic properties of materials- Para-, dia- and ferro - magnetic
substances with examples, Magnetization of materials, effect of temperature on magnetic properties.

UNIT IV: Electromagnetic Induction and Alternating Currents

Chapter–6: Electromagnetic Induction

Electromagnetic induction; Faraday's laws, induced EMF and current; Lenz's Law, Self and mutual induction.

Chapter–7: Alternating Current

Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LCR
series circuit (phasors only), resonance, power in AC circuits, power factor, wattless current. AC generator,
Transformer.
UNIT V: Electromagnetic waves
Chapter–8: Electromagnetic Waves
Basic idea of displacement current, Electromagnetic waves, their characteristics, their transverse nature
(qualitative idea only). Electromagnetic spectrum ( radio waves, microwaves, infrared, visible, ultraviolet, X-rays,
gamma rays) including elementary facts about their uses.

UNIT VI: Optics

Chapter–9: Ray Optics and Optical Instruments

Ray optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection
and optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lens maker’s formula,
magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism.
Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying
powers.

Note:- The above mentioned syllabus should be completed by September 13, 2024.

Revision

Mid Term Examination

Chapter–10: Wave Optics
Wave optics: Wave front and Huygen’s principle, reflection and refraction of plane wave at a plane surface
using wave fronts. Proof of laws of reflection and refraction using Huygen’s principle. Interference, Young's
double slit experiment and expression for fringe width ( No derivation final expression only), coherent sources
and sustained interference of light, diffraction due to a single slit, width of central maxima ( qualitative
treatment only).
UNIT VII: Dual Nature of Radiation and Matter
Chapter–11: Dual Nature of Radiation and Matter
Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric
equation-particle nature of light. Experimental study of photoelectric effect

Matter waves-wave nature of particles, de-Broglie relation.

UNIT VIII: Atoms and Nuclei

Chapter–12: Atoms

Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model of hydrogen atom, Expression
for radius of nth possible orbit, velocity and energy of electron in nth orbit, hydrogen line spectra (
qualitative treatment only).

Chapter–13: Nuclei

Composition and size of nucleus, nuclear force Mass-energy relation, mass defect; binding energy per nucleon and
its variation with mass number; nuclear fission, nuclear fusion.

UNIT IX: Electronic Devices

Chapter–14: Semiconductor Electronics

Materials, Devices and Simple Circuits Energy bands in conductors, semiconductors and insulators (qualitative
ideas only) Intrinsic and extrinsic semiconductors- p and n type, p-n junction Semiconductor diode - I-V
characteristics in forward and reverse bias, application of junction diode -diode as a rectifier.

Note: -
 All the syllabus should be completed by December 13, 2024.
 In Pre-Board/Annual Examination, questions will be asked from the entire syllabus except the reduced
lessons or portions of the lessons.
Revision of entire syllabus
Pre-Board/Annual Examination

For more information regarding the syllabus, see CBSE Syllabus Specifications 2024-25.
(https://cbseacademic.nic.in/web_material/CurriculumMain24/SrSec/English_Elective_SrSec_2024-25.pdf) – only
for demo