ISC Class 12 Physics Syllabus 2022

ISC Season 12The tenth Physics Curriculum 2023: Physics is an elective topic at ISC Class 12 and kinds a necessary 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 greater training entrance exams reminiscent of NEET and AIIMS. Physics requires a deep understanding of ideas and demanding considering to resolve questions. Nonetheless, understanding the right syllabus for the ISC Grade 12 Physics Board Examination can 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. Now we have lined 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: Concept holds 70 marks and the length is 3 hours. The sensible check will carry 30 marks (15 marks for sensible work, 10 marks for venture work, and 5 marks for sensible file). Verify right here ISC Board class 12 physics syllabus with unit weight.

S. no.


Whole 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 units

7 marks


70 marks

The primary paper – archaeological – 70 marks

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

(ii) All bodily portions have to 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 therapy is required.

  1. Static electrical energy

(i) Electrical prices and fields

Electrical Expenses 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 traces, electrical dipole, electrical subject generated by a dipole, torque on a dipole in a uniform electrical subject.

Electrical flux, Gauss’s idea of electrostatics and its purposes for locating a subject as a consequence of 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 mandatory). 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 as a consequence of level cost = /q0 (F0 is a check cost); for a gaggle of prices (the precept of superposition); level cost q in an electrician

The sector 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 traces of pressure: a handy option to visualize the electrical subject; Traits of traces of pressure Examples of traces of pressure as a consequence of (1) an remoted level cost (+ve and -ve); (2) a dipole, (3) two comparable 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. facet vast at place) for a dipole, and in addition for r>>2l (dipole is brief); a dipole in a uniform electrical subject; The web pressure is zero, the torque on the electrical dipole: = x and its derivation.

Gaussian theory

Functions: Acquiring an expression as a consequence of 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 power and capacitance

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

Conductors and insulators, free prices and prices certain 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 power 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

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

(c) dielectric fixed Ok = C’/C; That is additionally known as the relative permittivity Ok = ∈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’ = Ok. CV’; V’ = V/Ok; And the; If the capacitor stays linked to the emf supply, then V stays fixed V = Q/C = Q’/C’; Q’ = C’V = Ok.CV = Ok.Q increments; For a parallel plate capacitor with a dielectric in between, C’ = KC = Ok.∈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 stream 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 power and pressure, electrical resistance and conductivity. Temperature dependence of resistance and resistance.

Cell inside 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 inner resistance of the cell.

(a) The free electron idea 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 ok = σ

(b) {the electrical} power 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 power consumed P = VI = V2 / R = i2 s ; Business models electrical energy consumption and billing.

(c) The supply of power for an emf seat (reminiscent of a cell) could also be electrical, mechanical, thermal or radiant power. The emf of the supply is outlined because the work executed 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 whole work executed to the work executed throughout the exterior resistor R plus the work executed throughout the inner 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 named again emf as a result of it acts towards emf ε; V is the terminal pd. Derive formulation to mix an identical cells into collection, parallel, and blended teams. Parallel mixture of two cells of unequal emf. Collection 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 power. Notice 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 towards the present via the resistor. After we go via a cell, the -ve terminal is at a decrease degree and the +ve terminal is at the next degree, so by going from -V to +ve throughout the cell, we go up and

ΔV = + ε and going from +V to the tip throughout the cell, we’re sliding, so ΔV = -. Utility to easy circuits. Wheatstone Bridge; At first, take Ig = 0 as a result of we think about 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 towards 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 inner resistance of the cell.

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ISC – Mock Assessments for sophistication 12

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