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High School/JEE/NEET/IPhO Physics | 17-19 Yrs
Onion Physics for JEE & NEET
Revision Checklist Physics JEE/NEET | 17-19 Yrs
NCERT Short Notes for 12th Boards, JEE & NEET
PYQ Series - Exam Memory Maps for JEE and NEET
JEE Main Solutions
NCERT Solutions | Class XI Physics
NCERT Solutions | Class XII Physics
Physics in Minutes
Middle School/NTSE Physics | 14-16 Yrs
Junior School/NTSE Foundation Physics | 11-13 Yrs
Hybrid Physics/JEE/NEET | 17-19 Yrs
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High School/JEE/NEET/IPhO Physics | 17-19 Yrs
Basic Tools
Basics of Differentiation
Basics of Integration
Basics of Vectors
Basics of Solid Angle
Units and Dimensions
Mechanics
Motion in One Dimension
Motion in Two Dimensions
Relative Motion
Constrained Motion
Newton’s Laws of Motion
Friction
Work Energy Power
Circular Motion
System of Particles-I
System of Particles-II
Rigid Body Dynamics
Heat & Thermodynamics
Thermal Expansion
Calorimetry
Kinetic Theory of Gases
Laws of Thermodynamics
Heat Transfer
Oscillation & Waves
Simple Harmonic Motion
Waves Motion
Interference of Waves
Stationary Waves and Beats
Doppler’s Effect
Properties of Matter
Fluid Statics
Fluid Dynamics
Surface Tension
Viscosity
Elasticity
Gravitation
Gravitational Field
Satellite Motion
Electrostatics
Electric Charges and Fields
Electric Potential and Dipole
Electric Flux and Gauss’s Law
Conductors & Dielectrics
Electrostatic Energy and Electric Pressure
Capacitance
Electric Current & Circuits
Current Electricity
Circuit Analysis
Thermal Effects of Current
RC Circuits
Electrical Measuring Instruments
Magnetic Effects
Magnetic Effects of Current
Magnetic Force on Moving Charges
Electromagnetic Induction
Self & Mutual Inductance
Classical & Terrestrial Magnetism
Magnetic Properties of Materials
Alternating Current
Electromagnetic Waves
Optics
Geometrical Optics I - Reflection of Light
Geometrical Optics II - Refraction of Light
Geometrical Optics III - Thin Lenses
Dispersion of Light
Interference of Light
Diffraction of Light
Polarization of Light
Photometry
Optical Instruments
Modern Physics
Atomic Structure
Photo Electric Effect
Wave Particle Duality
X-Rays
Radioactivity
Nuclear Physics
Semiconductors
Semiconductor
PN Junction & Diodes
Transistor and its Application
Logic Gates
Communication Systems
Communication Systems
Modulation and Demodulation
Electric Charges and Fields
Module - 1
Electrostatics
Duration: 9.07 Min
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Module - 2
Charging of a Conductor
Duration: 5.36 Min
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Module - 3
Charge Distribution on an Isolated Conductor
Duration: 4.43 Min
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Module - 4
Charging of Insulators
Duration: 3.27 Min
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Module - 5
Charge Induction Concept in Metals
Duration: 4.11 Min
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Module - 6
Charge Induction in Atoms and Non-Metals
Duration: 4.01 Min
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Module - 7
Gold Leaf Electroscope
Duration: 4.07 Min
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Module - 8
Coulomb's Law
Duration: 4.38 Min
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Module - 9
Force Dependency on Medium
Duration: 10.25 Min
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Module - 10
Limitations of Coulomb's Law
Duration: 4.22 Min
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Module - 11
Principle of Superposition for Electric Forces
Duration: 3.19 Min
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Module - 12
Equilibrium of 3 Charge Particles Under Electrostatic Forces
Duration: 4.07 Min
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Module - 13
Stable and Unstable Equilibrium of Charge Particle
Duration: 7.34 Min
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Module - 14
Solved Example-1
Duration: 3.41 Min
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Module - 15
Solved Example-2
Duration: 2.12 Min
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Module - 16
Solved Example-3
Duration: 5.01 Min
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Module - 17
Solved Example-4
Duration: 3.48 Min
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Module - 18
Solved Example-5
Duration: 3.30 Min
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Module - 19
Electric Field
Duration: 4.30 Min
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Module - 20
Strength of Electric Field
Duration: 7.26 Min
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Module - 21
Electric Force on Charges in Electric Field
Duration: 1.51 Min
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Module - 22
Solved Example-6
Duration: 2.01 Min
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Module - 23
Solved Example-7
Duration: 2.32 Min
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Module - 24
Solved Example-8
Duration: 3.17 Min
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Module - 25
Solved Example-9
Duration: 1.54 Min
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Module - 26
Electric Field Strength due to a Point Charge
Duration: 2.02 Min
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Module - 27
Electric Field Strength due to an Extended Charged Body
Duration: 2.18 Min
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Module - 28
Electric Field Strength due to a Uniformly Charged Rod
Duration: 7.36 Min
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Module - 29
Electric Field Strength due to a Uniformly Charged Long Thread
Duration: 5.26 Min
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Module - 30
Electric Field Strength due to a Uniformly Charged Rod at a General Point
Duration: 7.16 Min
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Module - 31
Electric Field due to a Uniformly Charged Semi Infinite Wire
Duration: 2.28 Min
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Module - 32
Electric Field due to a Uniformly Charged Ring at its Centre
Duration: 6.14 Min
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Module - 33
Electric Field due to a Uniformly Charged Ring at its Axial Point
Duration: 7.28 Min
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Module - 34
Electric Field due to a Uniformly Charged Circular Arc
Duration: 4.05 Min
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Module - 35
Solved Example-10
Duration: 4.13 Min
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Module - 36
Solved Example-11
Duration: 5.03 Min
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Module - 37
Solved Example-12
Duration: 2.59 Min
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Module - 38
Solved Example-13
Duration: 1.51 Min
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Module - 39
Electric Field due to a Uniformly Surface Charged Disc
Duration: 6.06 Min
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Module - 40
Electric Field Strength due to a Uniformly Charged Large Sheet
Duration: 10.34 Min
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Module - 41
Uniformly Charged Disc as a Limiting Case of Large Sheet
Duration: 2.39 Min
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Module - 42
Electric Field at the Centre of a Uniformly Charged Hemispherical Cup
Duration: 5.41 Min
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Module - 43
Electric Field due to a Large Uniformly Charged Metal Sheet
Duration: 2.47 Min
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Module - 44
Electric Field Inside Charged Metal Bodies
Duration: 4.28 Min
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Module - 45
Charge Induction in Metals Due to Electric Field
Duration: 4.20 Min
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Module - 46
Electric Field due to a Charged Metal Sphere
Duration: 4.12 Min
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Module - 47
Electric Field due to a Uniformly Charged Non-conducting Sphere
Duration: 4.00 Min
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Module - 48
Electric Field due to a Uniformly Charged Long Metal Cylinder
Duration: 4.16 Min
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Module - 49
Electric Field due to a Uniformly Charged Solid Long Cylinder
Duration: 5.24 Min
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Module - 50
Electric Field due to a Thick Uniformly Charged Large Sheet
Duration: 3.49 Min
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Module - 51
Solved Example-14
Duration: 5.14 Min
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Module - 52
Solved Example-15
Duration: 3.40 Min
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Module - 53
Solved Example-16
Duration: 4.06 Min
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Module - 54
Solved Example-17
Duration: 3.07 Min
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Post your question related to above video lecture
sir why is tan theta taken as 1/20 as they both dont make a right angle there the value of hypotmuse should be taken as 20 and opposite side(from angle theta) as 1 after that we should calculated the adjacent side of the triangle using pythagoras theoram which gives us the value of tan theta as 1/root(399)
1 years ago by Shashwat
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hello sir , sir you have changed the value of radius = 3, from cm to meter but you haven't change 20 cm to m and sir the final answer is 0.8 * 10^-8
6 years ago by shreyaa chaudhuri
Ans 1 ->
because length of string will not change
5 years ago by
Yogesh Vashisth
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Sir do we have to convert 1cm to m and 20cm to metre inorder to find tan theeta ?
9 years ago by Rahul Ganotra
Ans 1 ->
dont cnvert !! its a ratio .. so obviosly even if u cnvert the cnvertion factore will cancel off in d numerator & denom ! or m/m=cm/cm implies unitless !!
9 years ago by
vishwanath v pai
Ans 2 ->
Salute to your reply vishwanath v pai
7 years ago by
Prakash Raj
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