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NCERT

Physics XII Part-I

NCERT via Swayam

Overview

Course - 03 in physics will cover very interesting phenomena observed by scientists and thinkers. The course explains the observations according to the currently accepted explanations. We will study concepts of static electricity where we will understand electric charges, electric fields and potentials. We will learn methods of describing electric fields and their applications. We will consider charges in motion, and the existence of magnetic field with every moving charge. The phenomenon of electromagnetic induction, study of which opens up a whole new world of physics. We will learn about two types of electricity which we use in our daily lives - direct current and alternating current. We will dwell on - how alternating current is generated, how it reaches our homes and how we use it for special purposes. Study of behaviour of circuit elements like resistors, capacitors inductors will help us design our own circuits for useful purposes. Our lives today are so dependent on electromagnetic waves and we will study about these in the course.This course has 5 units:ElectrostaticsCurrent ElectricityMagnetic Effects of Current and MagnetismElectromagnetic induction and alternating currentElectromagnetic wavesThe aim and design of the course is to develop a deeper understanding of different concepts in Physics. As you work through the course, you will find lecture videos, e-text, suggestions for problem solving methods, animations, practice questions, study guides. Assignments and Tests are provided to keep track of your achievements.

Syllabus

Unit No.

Module No.

Module Name

Unit 1 –

Electrostatics

Module 1

Electric charges and their types

Module 2

Force between Multiple charges

Module 3

Uniform Electric field

Module 4

Electric dipole

Module 5

Electric Flux and Gauss Law

Module 6

Application of Gauss theorem

Module 7

Electric potential and Equipotential surfaces

Module 8

Electrostatics of Conductors

Module 9

Capacitance

Module 10

Electrostatic Potential and Capacitance

Module 11

Numerical problems based on capacitors

Extra Reading Materials

Unit 2 –

Current and Electricity

Module 12

Electric current and drift velocity

Module 13

Resistance and Resistivity

Module 14

Combination of Resistances

Module 15

Internal resistance of a cell

Module 16

Kirchhoff’s Rules

Module 17

Wheatstone bridge and Meter bridge

Module 18

Potentiometer

Module 19

Electrical energy and power

Extra Reading Materials

Unit 3 –

Magnetic Effects Of Current and Magnetism

Module 20

Biot Savarts law

Module 21

Problems based on Biot Savart’s law

Module 22

Ampere Circuital Law

Module 23

Cyclotron

Module 24

Magnetic force

Module 25

Torque and Current loop

Module 26

Moving Coil Galvanometer

Module 27

Magnetic Dipole Moment

Module 28

Classification of materials and Magnets

Module 29

Earth’s Magnetism

Extra Reading Materials

Unit 4 –

Electromagnetic Induction and Alternating Current

Module 30

Electromagnetic induction

Module 31

Lenz’s law and Motional emf

Module 32

Eddy currents

Module 33

Alternating current

Module 34

Components of AC circuit

Module 35

LC Circuit and LC oscillations

Module 36

LCR circuit

Module 37

Transformer

Module 38

Power transmission in AC

Extra Reading Materials

Unit 5 –

Electromagnetic Waves

Module 39

Maxwell's Equations

Module 40

Electromagnetic Spectrum and Uses of EM waves

Extra Reading Materials

Final Assessment

Taught by

Anuradha Mathur

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