Physics Class 12 Solutions, MCQ, Notes, Book FREE PDF Download

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CBSE Class 12 Physics Question Paper 55/1/1 Set – 1 2024 CBSE Class 12 Physics Question Paper 55/1/2 Set – 2 2024 CBSE Class 12 Physics Question Paper 55/1/3 Set – 3 2024 CBSE Class 12 Physics Question Paper 55/2/1 Set – 1 2024 CBSE Class 12 Physics Question Paper 55/2/2 Set – 2 2024 […]

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Book Part-1 Chapter 1 – Electric Charges and Fields Chapter 2 – Electrostatic Potential and Capacitan Chapter 3 – Current Electricity Chapter 4 – Moving Charges and Magnetism Chapter 5 – Magnetism and Matter Chapter 6 – Electromagnetic Induction Chapter 7 – Alternating Current Chapter 8 – Electromagnetic Waves Book Part-2 Chapter 9 – Ray […]

Class 12 Physics Book Part-1 Prelims Chapter 1 – Electric Charges and Fields Chapter 2 – Electrostatic Potential and Capacitan Chapter 3 – Current Electricity Chapter 4 – Moving Charges and Magnetism Chapter 5 – Magnetism and Matter Chapter 6 – Electromagnetic Induction Chapter 7 – Alternating Current Chapter 8 – Electromagnetic Waves Answers Class […]

Electric Charges and Fields Notes Chapter 1 Physics  Class 12 Electrostatic Potential and Capacitance Notes Chapter 2 Physics  Class 12 Current Electricity Notes Chapter 3 Physics  Class 12 Moving Charges and Magnetism Notes Chapter 4 Physics   Class 12 Magnetism And Matter Notes Chapter 5 Physics   Class 12 Electromagnetic Induction Notes Chapter 6 Physics […]

Notes For All Chapters Physics Class 12 Topic 1 Communication 1. Communication Communication is the act of transmission and reception of information. 2. Communication System A system comprises of transmitter, communication channel and receiver. A block diagram of a generalised communication system is shown as below: 3. Transmitter It consists of transducer/signal generators, modulators and transmitting antenna. 4. […]

Semiconductor Electronic: Material, Devices And Simple Circuits Notes For All Chapters Physics Class 12 1. Metals They possess very low resistivity or high conductivity. ρ ~ 10-2.10-8 Ωm, σ ~102. 108 Sm-1 2. Semiconductors They have resistivity or conductivity intermediate to metals and insulators. ρ ~ 10-5. 106 Ωm, σ ~ 10+5 .10-6 Sm-1 Types of Semiconductors Types of semiconductors are given […]

Notes For All Chapters Physics Class 12 CBSE 1. In every atom, the positive charge and mass are densely concentrated at the centre of the atom forming its nucleus. More than 99.9% mass of the atom is concentrated in the nucleus. 2. Atomic Mass Unit (amu) The unit to express atomic masses is called atomic mass unit. […]

Notes For All Chapters Physics Class 12 CBSE 1. All elements consists of very small invisible particles, called atom. Every atom is a sphere of radius of the order of 10-10 m, in which entire mass is uniformly distributed and negative charged electrons revolve around the nucleus. 2. Experimental arrangement for α-scattering experiment and trajectory followed by α […]

Notes For All Chapters Physics Class 12 CBSE 1. Photoelectric Effect The phenomenon of emission of photoelectron from the surface of metal, when a light beam of suitable frequency is incident on it, is called photoelectric effect. The emitted electrons are called photoelectrons and the current so produced is called photoelectric current. Hertz’ Observation The phenomenon of […]

Notes For All Chapters Physics Class 12 CBSE 1. Wave Optics Describes the connection between waves and rays of light. According to wave theory of light, light is a form of energy which travels through a medium in the form of transverse wave. 2. Wave front The locus of all those particles which are vibrating in the […]

Notes For All Chapters Physics Class 12 CBSE 1. Ray Optics or Geometrical Optics In this optics, the light is considered as a ray which travels in a straight line. It states that for each and every object, there is an image. 2. Reflection Reflection is the phenomenon of changing the path of light without any change […]

Notes For All Chapters Physics Class 12 CBSE 1. Displacement Current The current which comes into play m the region in which the electric field and the electric flux is changing with time. It is given by 2. Need for Displacement Current Ampere’s circuital law for conduction current during charging of a capacitor was found inconsistent. Therefore, […]

Notes For All Chapters Physics Class 12 CBSE 1. Alternating Current (AC) It is the current which varies in both magnitude as well as direction alternatively and periodically. I = I0 sin ωt or I = I0 cosωt where, I0 = peak value or maximum value of AC. 2. Effective Value or rms Value of AC It is defined as […]

Notes For All Chapters Physics Class 12 CBSE 1. Magnetic Flux The magnetic flux linked with any surface is equal to total number of magnetic lines of force passing normally through it. It is a scalar quantity. 2. The phenomenon of generation of current or emf by changing the magnetic flux is known as Electromagnetic Induction EMI). […]

Notes For All Chapters Physics Class 12 CBSE 1. The magnetic dipole moment of a magnetic dipole is given by M = m × 2I where, m is pole strength and 2I is dipole length directed from S to N. The SI unit of magnetic dipole moment is A-m2 or J/T. It is a vector quantity and […]

Notes For All Chapters Physics Class 12 CBSE 1. The space in the surroundings of a magnet or a current-carrying conductor in which its magnetic influence can be experienced is called magnetic field. Its SI unit is Tesla (T). 2. Oersted experimentally demonstrated that the current-carrying conductor produces magnetic field around it. When key K is closed, […]

Notes For All Chapters Physics Class 12 CBSE 1. The directed rate of flow of electric charge through any cross-section of a conductor is known as electric current. If ∆Q charge flows in time ∆t, then current at any time t is NOTE: Current is a scalar quantity. I is in the direction of flow of positive […]

Notes For All Chapters Physics Class 12 CBSE 1. Electrostatic Potential The electrostatic potential at any point in an electric field is equal to the amount of work done per unit positive test charge or in bringing the unit positive test charge from infinite to that point, against the electrostatic force without acceleration. NOTE: Electrostatic potential is […]

Notes For All Chapters Physics Class 12 CBSE 1. Electric Charge Charge is the property associated with matter due to which it produces and experiences electric and magnetic effect. 2. Conductors and Insulators Those substances which readily allow the passage of electricity through them are called conductors, e.g. metals, the earth and those substances which offer high […]