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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).


Lecture 1: Coulomb's Law Part - 1

01:09:52

Lecture 2: Coulomb's Law Part - 2

00:55:56

Lecture 3: Dipole Part 1

00:54:40

Lecture 4: Dipole Part 2

01:05:48

Lecture 5: Gauss Theorem

01:08:16
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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 polarisation, 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.


Lecture 1: Electro Static Potential Energy Part 1

00:55:23

Lecture 2: Electro Static Potential Energy Part 2

01:02:45

Lecture 3: Electro Static Potential Energy Part 3

00:56:32

Lecture 4: Capacitance

00:55:59

Lecture 5: Electrostatic Potential and Capacitance Numerical

01:10:36
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Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity. Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; 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 laws and simple applications. Wheatstone bridge, metre bridge.

Potentiometer - principle and its applications to measure potential difference and for comparing emf of two cells; measurement of internal resistance of a cell.


Lecture 1: Current Electricity

01:12:22

Lecture 2: Combination of Resistance

00:58:42

Lecture 3: Kirchhoff's Rules

00:58:55

Lecture 4: Current Electricity Numerical

01:08:54
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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 and toroidal solenoids, Force on a moving charge in uniform magnetic and electric fields. Cyclotron.

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; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter.


Lecture 1: Motion of charged particle in magnetic field

01:02:57

Lecture 2: Biot - Savart Law

00:56:32

Lecture 3: Amperes' Circuital Law

01:05:53

Lecture 4: Solenoid, Toroid

01:04:13

Lecture 5: Moving Coil Galvanometer

01:00:01
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Current loop as a magnetic dipole and its magnetic dipole moment. Magnetic dipole moment of a revolving electron. Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis. Torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements.

Para-, dia- and ferro - magnetic substances, with examples. Electromagnets and factors affecting their strengths. Permanent magnets.


Lecture 1: Magnetic Materials

01:09:24
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Electromagnetic induction; Faraday’s laws, induced emf and current; Lenz’s Law, Eddy currents. 

Self and mutual induction.


Lecture 1: Electro Magnetic induction

00:59:43

Lecture 2: Self Induction

00:53:58

Lecture 3: Electromagnetic Induction Numerical

01:05:32
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Alternating currents, peak and rms value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits, wattless current. 

AC generator and transformer.


Lecture 1: Alternating Current Part- 1

00:59:05

Lecture 2: Alternating Current Part- 2

01:02:40

Lecture 3: A.c Generator

00:49:30

Lecture 4: A.c Numerical

01:04:07
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Basic idea of displacement current, Electromagnetic waves, their characteristics, their transverse nature (qualitative ideas only).

Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.


Lecture 1: Electromagnetic Waves

01:07:18
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Ray  Optics:: Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula. Magnification, power of a lens, combination of thin lenses in contact combination of a lens and a mirror. Refraction and dispersion of light through a prism.Scattering of light - blue colour of sky and reddish apprearance of the sun at sunrise and sunset.



Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.


Lecture 1: Ray Optics

01:09:13

Lecture 2: Prism Part 1

00:54:15

Lecture 3: Prism Part 2

00:54:30

Lecture 4: Lens Maker's Formula

00:39:54

Lecture 5: Optical Instruments

01:00:00

Lecture 6: Ray Optics Numericals

01:12:06
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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, coherent sources and sustained interference of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes. Polarisation, plane polarised light Brewster's law, uses of plane polarised light and Polaroids.


Lecture 1: Wave Optics

00:58:52

Lecture 2: Interference of Light Waves

01:02:20

Lecture 3: Diffraction

00:59:36

Lecture 4: Polarisation

00:48:16

Lecture 5: Wave Optics Numerical

00:42:11
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Dual nature of radiation. Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light.

Matter waves-wave nature of particles, de Broglie relation. Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).


Lecture 1: Dual Nature Of Matter

00:00:00

Lecture 2: Photoelectric Equation

01:05:19
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Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.


Lecture 1: Atomic Spectra

01:01:04

Lecture 2: Numerical on Atoms

00:58:12
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Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivityalpha, beta and gamma particles/rays and their properties; radioactive decay law. 

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


Lecture 1: Nucleus Part-1

00:15:36

Lecture 2: Nucleus Part-2

00:17:23

Lecture 3: Nucleus Part-3

00:33:18

Lecture 4: Nuclear Force

00:34:18

Lecture 5: Numerical On Nucleus Part 1

00:32:09

Lecture 6: Numerical On Nucleus Part-2

00:29:54
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Energy bands in conductors, semiconductors and insulators (qualitative ideas only)

Semiconductor diode - I-V characteristics in forward and reverse bias, diode as a rectifier;

Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator.

Junction transistor, transistor action, characteristics of a transistor and transistor as an amplifier (common emitter configuration), basic idea of analog and digital signals, Logic gates (OR, AND, NOT, NAND and NOR).


Lecture 1: Semi Conductor

00:33:37

Lecture 2: Types Of Semiconductor

00:32:22

Lecture 3: P-n Junction Diode

00:34:06

Lecture 4: Rectifier Part 1

00:22:21

Lecture 5: Rectifier Part 2

00:23:43

Lecture 6: Zener Diode

00:31:03

Lecture 7: Photo Diode, Solar Cell, Led

00:33:34

Lecture 8: Logic Gates

00:26:43

Lecture 9: Transistor

00:34:10

Lecture 10: Common Emitter-transistor

00:22:55

Lecture 11: Common Emitter Amplifier

00:25:12
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Elements of a communication system (block diagram only); bandwidth of signals (speech, TV and digital data); bandwidth of transmission medium. Propagation of electromagnetic waves in the atmosphere, sky and space wave propagation, satellite communication. Need for modulation, amplitude modulation.


Lecture 1: Communication System

00:35:29

Lecture 2: Amplitude Modulation

00:25:49

Lecture 3: Production Of Amplitude Modulated Wave

00:27:12

Lecture 4: Block Diagram of Transmitter And Receiver

00:22:54

Lecture 5: Modes Of Propagation

00:27:02

Lecture 6: Communication System Numerical

00:14:36
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Lecture 1: Ncert Numericals Chapter-1

00:37:23

Lecture 2: Ncert Numericals Chapter-2

00:16:21

Lecture 3: Ncert Numericals Chapter-3

00:19:33

Lecture 4: Ncert Numericals Chapter-4,5

00:23:16

Lecture 5: Ncert Numericals Part-1

00:30:31

Lecture 6: Ncert Numericals Part-2

00:25:00

Lecture 7: Numerical on Magnetism

01:00:28
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Published    09-May-2018      Bilingual

Vikas Dhillon

Phone: 98********98 Email: vik********@gmail.com
Address: Institute: Study Khazana

About Us

PHYSICS Teacher


Qualification

Msc (physics ),kirori mal college ,Delhi university


Biography

3+ years



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STUDY KHAZANA is an e-treasure of knowledge and education with one aim of upbringing the level of education all over the India. In the journey of more than 25 years with 150 centers across the India we discovered that many student are out of the reach of proper education due to poverty.

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