Physics Notes for Class 12 chapter
CHAPTER 3 CURRENT ELECTRICITY
An electric current which vary for a small finite time, while growing from zero to maximum or
decaying from maximum to zero, is called a transient current.
Physics Notes for Class 12 Chapter 5
Magnetrism And Matter
The property of any object by virtue of which it can attract a piece of iron or steel is
A natural magnet is an ore of iron (Fe3O4), which attracts small pi
Physics Notes Class 12 Chapter 14
Semiconductor Electronics, Materials, Devices
and Sample Circuits
It is the branch of science which deals with the electron flow through a vacuum, gas or
Classification of substances on the basis of
Physics Notes for Class 12 chapter 8 and
15 ELECTROMAGNETIC WAVES and
It is a current which produces in the region in which the electric field and hence the electric
flux changes with tim
Physics Notes Class 12 Chapter 11 Dual
Nature of Radiation and Matter
Cathode rays are the stream of fast moving electrons. These rays are produced in a discharge
tube at a pressure below 0.01 rom of mercury.
Properties of Cathode Rays
Physics Notes for Class 12 Chapter 10 Wave
Wave optics describes the connection between waves and rays of light. According to wave
theory of light, the light is a form of energy which travels through a medium in the form of
transverse wave m
Physics Notes for Class 12 Chapter 4 Moving
Charges and Magnetrism
A magnetic field is produced in the surrounding of any current carrying conductor.
The direction of this magnetic field can be obtained by Amperes swimming rule.
Physics Notes for Class 12 Chapter 9 Ray
Optics and optical Instruments
Light is a form of energy eyes. which produces the Sources of light are of three typesthermal sources and luminescent sources.
Photometry is a branch measurement of light
Physics Notes for Class 12 Chapter 13 Nuclei
The entire positive charge and nearly the entire mass of atom is concentrated in a very small
space called the nucleus of an atom.
The nucleus consists of protons and neutrons. They are called nu