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 review. Even college students within the medical discipline have to review Physics as it’s a part of most increased schooling entrance exams reminiscent of NEET and AIIMS. Physics requires a deep understanding of ideas and important pondering to resolve 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 have now 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 period is 3 hours. The sensible take a look at 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.
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S. no. |
lonliness |
Whole weight |
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1. |
Static electrical energy |
14 marks |
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2. |
electrical present |
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3. |
Magnetic results of present and magnetism |
16 marks |
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4. |
Electromagnetic induction and alternating currents |
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5. |
Electromagnetic waves |
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6. |
optics |
20 marks |
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7. |
The twin nature of radiation and matter |
13 marks |
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8. |
Atoms and nuclei |
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9. |
digital gadgets |
7 marks |
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sum |
70 marks |
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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 should be specified when introduced 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.
- Static electrical energy
(i) Electrical costs and fields
Electrical Fees Conservation and Estimation of Cost, Coulomb’s Regulation; The precept of superposition and steady cost distribution.
Electrical discipline, electrical discipline generated by some extent cost, electrical discipline traces, electrical dipole, electrical discipline generated by a dipole, torque on a dipole in a uniform electrical discipline.
Electrical flux, Gauss’s concept of electrostatics and its purposes for locating a discipline as a result of an infinitely lengthy straight wire, an infinite uniformly charged planar slab and a uniformly charged skinny spherical shell.
(a) Coulomb’s legislation, the SI unit of cost; Free house permittivity and dielectric medium. Frictional electrical energy, electrical costs (two varieties); Repulsion and attraction. Easy atomic construction – electrons and ions. conductors and insulators. quantization and preservation of electrical cost; Coulomb’s legislation in vector kind; (Location coordinates p1s2 It’s not obligatory). Examine with Newton’s legislation of gravity. superposition precept.
(b) the idea of electrical discipline and its depth; examples from completely different fields; electrical and magnetic gravity; Electrical discipline as a result of level cost = /q0 (F0 is a take a look at cost); for a gaggle of costs (the precept of superposition); level cost q in an electrician
The sphere experiences an electrical power e = q is the density ensuing from the continual distribution of cost, i.e. linearity, floor and quantity. p p
(c) Electrical traces of power: a handy method to visualize the electrical discipline; Traits of traces of power Examples of traces of power as a result of (1) an remoted level cost (+ve and -ve); (2) a dipole, (3) two comparable costs at a small distance; (4) A uniform discipline 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 large at place) for a dipole, and likewise for r>>2l (dipole is brief); a dipole in a uniform electrical discipline; The online power is zero, the torque on the electrical dipole: = x and its derivation.
Purposes: Acquiring an expression as a result 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 out of doors). 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 some extent cost, dipole and system costs; Equipotential surfaces, the electrical potential vitality of a system of two level costs and an electrical dipole in an electrostatic discipline.
Conductors and insulators, free costs and costs sure inside a conductor. Dielectrics and electrical energy Polarization, capacitors and capacitance, mixture of capacitors in sequence and in parallel. The capacitance of a parallel plate capacitor is the vitality saved in a capacitor.
(b) conductor capacitance C = Q/V; Get the capacitance of the parallel plate capacitor (C = ∈0A/d) and the equal capacitance of capacitors in sequence and parallel teams. Getting
Specific the saved vitality (U = 1/2CV2 = 1/2 QV = 1/2Q2/c) and vitality density.
(c) dielectric fixed Okay = C’/C; That is additionally known as the relative permittivity Okay = ∈r = ∈/∈o; preliminary concepts of matter polarization in a dialogue of the standard of a uniform electrical discipline; The induced floor costs weaken the unique discipline; 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).
- electrical present
The mechanism of present circulate in conductors. Movement and drift velocity and their relationship to electrical present; Ohm’s legislation and its proof, resistance and resistivity, and their relationship to the drift velocity of electrons; The sixth properties (linear and nonlinear), electrical vitality and power, electrical resistance and conductivity. Temperature dependence of resistance and resistance.
Cell inner resistance, potential distinction and emf of the cell, sequence 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 concept of conduction; acceleration of free electrons, rest time τ; electrical present I = Q/t; Idea of drift velocity and electron movement. Ohm’s legislation, 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 legislation ok = 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 ; Business models electrical energy consumption and billing.
(c) The supply of vitality for an emf seat (reminiscent of a cell) could also be electrical, mechanical, thermal or radiant vitality. The emf of the supply is outlined because the work performed per unit cost to power them to journey to the very 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 overall work performed to the work performed throughout the exterior resistor R plus the work performed 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 known as again emf as a result of it acts in opposition to emf ε; V is the terminal pd. Derive formulation to mix an identical cells into sequence, parallel, and combined 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 legislation of conservation of cost and the second is the legislation of conservation of vitality. Observe 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 way of the resistor. After we move by way of 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 top throughout the cell, we’re sliding, so ΔV = -. Software 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 inner resistance of the cell.
Obtain and browse the whole ISC Grade 12 Physics Syllabus 2022-23 beneath
ISC semester 12 board exams are quick approaching and the schedule of dates can also be out. Now’s the time to start out experimenting with mock exams. It boosts confidence and gives college students with an concept of what to do and what to not do in remaining exams. Take a look at ISC Class 12 Mock Assessments right here.