ISC Class 12 Physics Syllabus 2022

ISC Season 12The tenth Physics Curriculum 2023: Physics is an elective topic at ISC Class 12 and types a vital a part of the Science course. It’s a difficult topic with a broad syllabus. Nonetheless, for engineering aspirants, physics is a topic to check. Even college students within the medical subject have to check Physics as it’s a part of most larger schooling entrance exams comparable to NEET and AIIMS. Physics requires a deep understanding of ideas and important considering to unravel questions. Nonetheless, realizing the right syllabus for the ISC Grade 12 Physics Board Examination can also be essential in order that you don’t over- or under-prepare. Class 12 of Physics at ISC (code: 861) consists of two papers: theoretical and sensible. We’ve got coated ISC Grade 12 Physics syllabus together with unit weight and sensible work particulars. Learn and obtain newest and reference ISC Grade 12 Physics Syllabus 2023 pdf right here.

ISC Class twelfth Datesheet 2023: Verify full date sheet with directions right here

ISC Council class 12 Physics curriculum

ISC class 12 physics topic is split into two papers: theoretical and sensible. Paper 1: Principle holds 70 marks and the length is 3 hours. The sensible check will carry 30 marks (15 marks for sensible work, 10 marks for undertaking work, and 5 marks for sensible file). Verify right here ISC Board class 12 physics syllabus with unit weight.

S. no.


Complete weight


Static electrical energy

14 marks


electrical present


Magnetic results of present and magnetism

16 marks


Electromagnetic induction and alternating currents


Electromagnetic waves



20 marks


The twin nature of radiation and matter

13 marks


Atoms and nuclei


digital gadgets

7 marks


70 marks

The primary paper – archaeological – 70 marks

Noticeable: (i) Until in any other case specified, solely SI models are used throughout instructing and studying, in addition to for answering questions.

(ii) All bodily portions should be specified when offered together with their models and dimensions.

(3) Numerical issues from all topics are included besides the place they’re particularly excluded or the place solely qualitative remedy is required.

  1. Static electrical energy

(i) Electrical prices and fields

Electrical Prices Conservation and Estimation of Cost, Coulomb’s Regulation; The precept of superposition and steady cost distribution.

Electrical subject, electrical subject generated by some extent cost, electrical subject strains, electrical dipole, electrical subject generated by a dipole, torque on a dipole in a uniform electrical subject.

Electrical flux, Gauss’s concept of electrostatics and its purposes for locating a subject attributable to an infinitely lengthy straight wire, an infinite uniformly charged planar slab and a uniformly charged skinny spherical shell.

(a) Coulomb’s regulation, the SI unit of cost; Free area permittivity and dielectric medium. Frictional electrical energy, electrical prices (two sorts); Repulsion and attraction. Easy atomic construction – electrons and ions. conductors and insulators. quantization and preservation of electrical cost; Coulomb’s regulation in vector type; (Location coordinates p1s2 It’s not obligatory). Examine with Newton’s regulation of gravity. superposition precept.

ISC Physics 1

(b) the idea of electrical subject and its depth; examples from completely different fields; electrical and magnetic gravity; Electrical subject attributable to level cost = /q0 (F0 is a check cost); for a gaggle of prices (the precept of superposition); level cost q in an electrician

The sphere experiences an electrical pressure e = q is the density ensuing from the continual distribution of cost, i.e. linearity, floor and quantity. p p

(c) Electrical strains of pressure: a handy option to visualize the electrical subject; Traits of strains of pressure Examples of strains of pressure attributable to (1) an remoted level cost (+ve and -ve); (2) a dipole, (3) two related prices at a small distance; (4) A uniform subject between two parallel, oppositely charged plates.

(d) electrical dipole and dipole second; derive the purpose at some extent, (1) on the axis (finish at place) (2) on the perpendicular bisector (equatorial i.e. aspect broad at place) for a dipole, and in addition for r>>2l (dipole is brief); a dipole in a uniform electrical subject; The online pressure is zero, the torque on the electrical dipole: = x and its derivation.

Gaussian theory

Functions: Acquiring an expression attributable to 1. an infinite line of cost, 2. an infinite uniformly charged flat skinny plate, 3. a hole skinny spherical shell (inside, on the floor and outdoors). Graphical distinction of E versus r for a skinny spherical shell. e

(2) Electrostatic potential, potential vitality and capacitance

electrical potential, potential distinction, electrical potential due to a degree cost, dipole and system prices; Equipotential surfaces, the electrical potential vitality of a system of two level prices and an electrical dipole in an electrostatic subject.

Conductors and insulators, free prices and prices sure inside a conductor. Dielectrics and electrical energy Polarization, capacitors and capacitance, mixture of capacitors in collection and in parallel. The capacitance of a parallel plate capacitor is the vitality saved in a capacitor.

Physics 2

(b) conductor capacitance C = Q/V; Get the capacitance of the parallel plate capacitor (C = ∈0A/d) and the equal capacitance of capacitors in collection and parallel teams. Getting

Categorical the saved vitality (U = 1/2CV2 = 1/2 QV = 1/2Q2/c) and vitality density.

(c) dielectric fixed Okay = C’/C; That is additionally referred to as the relative permittivity Okay = ∈r = ∈/∈o; preliminary concepts of matter polarization in a dialogue of the standard of a uniform electrical subject; The induced floor prices weaken the unique subject; results in a consequent lower in pd(V); For the remaining cost as Q = CV = C’ V’ = Okay. CV’; V’ = V/Okay; And the; If the capacitor stays related to the emf supply, then V stays fixed V = Q/C = Q’/C’; Q’ = C’V = Okay.CV = Okay.Q increments; For a parallel plate capacitor with a dielectric in between, C’ = KC = Okay.∈o. A / d = ∈r .∈o .A / d. Then C” = ∈0a / (d / ∈s); For a capacitor partially stuffed with dielectric, capacitance, C’ = ∈oA/(dt + t/∈r).

  1. electrical present

The mechanism of present circulate in conductors. Movement and drift velocity and their relationship to electrical present; Ohm’s regulation and its proof, resistance and resistivity, and their relationship to the drift velocity of electrons; The sixth properties (linear and nonlinear), electrical vitality and pressure, electrical resistance and conductivity. Temperature dependence of resistance and resistance.

Cell inner resistance, potential distinction and emf of the cell, collection and parallel cell array, Kirchhoff’s legal guidelines and easy purposes, Wheatstone bridge, multimeter bridge. potentiometer – precept and its purposes for measuring a possible distinction, for evaluating the emf of two cells; To measure the interior resistance of the cell.

(a) The free electron concept of conduction; acceleration of free electrons, leisure time τ; electrical present I = Q/t; Idea of drift velocity and electron movement. Ohm’s regulation, present density J = I/A; experimental validation, graphs and slopes, ohmic and non-ohmic conductors; Acquiring the relation I = vDren derive σ = ne2τ/m and ρ = m/ni2; Impact of temperature on impedance and resistivity of conductors and semiconductors, graphs. resistance R = V/I; resistance ρ given by R = ρ.l/A; conductivity and conductivity. Ohm’s regulation okay = σ

(b) {the electrical} vitality consumed at time t is E = Pt = VIt; Utilizing Ohm’s Regulation E = V.2/Rt = me2RT. potential distinction V = P/I; P = vi; Electrical vitality consumed P = VI = V2 / R = i2 s ; Industrial models electrical energy consumption and billing.

(c) The supply of vitality for an emf seat (comparable to a cell) could also be electrical, mechanical, thermal or radiant vitality. The emf of the supply is outlined because the work achieved per unit cost to pressure them to journey to the best level of voltage (from -ve terminal to +5 terminals contained in the cell) Due to this fact, ε = dW/dq; however dq = Idt; dW = εdq = εIdt. Equating the full work achieved to the work achieved throughout the exterior resistor R plus the work achieved throughout the interior resistance r; εIdt = i2R dt + i2rdt. ε = i(R + r); i = ε / (R + r); Additionally IR + Ir = ε or V = ε- Ir the place Ir is known as again emf as a result of it acts in opposition to emf ε; V is the terminal pd. Derive formulation to mix similar cells into collection, parallel, and combined teams. Parallel mixture of two cells of unequal emf. Sequence array of n cells of unequal emf.

(d) State and clarify Kirchhoff’s legal guidelines with easy examples. The primary is the regulation of conservation of cost and the second is the regulation of conservation of vitality. Word the change in voltage throughout the resistor ΔV = IR <0 عندما نذهب `` لأسفل '' مع التيار (قارن مع تدفق الماء في النهر) ، و ΔV = IR> 0 if we go up in opposition to the present by means of the resistor. After we cross by means of a cell, the -ve terminal is at a decrease stage and the +ve terminal is at a better stage, so by going from -V to +ve throughout the cell, we go up and

ΔV = + ε and going from +V to the top throughout the cell, we’re sliding, so ΔV = -. Utility to easy circuits. Wheatstone Bridge; At first, take Ig = 0 as a result of we take into account a balanced bridge, deriving R1/ s2 = p3/ s4 [Kirchhoff’s law not necessary]. The multimeter bridge is a modified type of the Whetstone bridge, and is used to measure unknown resistance. Right here is R3 = l1ρ and R.4= l2ρ; s3/ s4= l1/ Liter2. Potentiometer precept: the drop in voltage ΔV αΔl; The extra emf ε1 is balanced in opposition to the drop in potential V1 throughout the size l1. ε1 = V.1 = Kl1 ; ε1/ e2 = l1/ Liter2; A potentiometer is sort of a voltmeter. Potential gradient and potentiometer sensitivity. Potentiometer use: to match the emfs of two cells, to find out the interior resistance of the cell.

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