# Physics XII Part-I

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## 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:
• Electrostatics
• Current Electricity
• Magnetic Effects of Current and Magnetism
• Electromagnetic induction and alternating current
• Electromagnetic waves
The 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

COURSE LAYOUT

Week 1

Unit 1: Electrostatics
Module 1: Electric charges and their types
Module 2: Superposition of charges

Week 2

Unit 1: Electrostatics
Module 3: Uniform Electric field
Module 4: Electric dipole and its physical significance

Week 3

Unit 1: Electrostatics
Module 5: Electric Flux and Gauss Law
Module 6: Application of Gauss theorem

Week 4

Unit 1: Electrostatics
Module 7: Electric potential and Equipotential surfaces
Module 8: Electrostatics of Conductors

Week 5

Unit 1: Electrostatics
Module 9: Capacitance
Module 10: Electrostatic Potential and Capacitance

Week 6

Unit 1: Electrostatics
Module 11: Numerical problems based on capacitors
Unit 1: Electrostatics _Study Guide

Week 7

Unit 2: Current and Electricity
Module 1: Electric current and drift velocity
Module 2: Resistance and Resistivity

Week 8

Unit 2: Current and Electricity
Module 3: Combination of Resistances
Module 4: Internal resistance of a cell

Week 9

Unit 2: Current and Electricity

Module 5: Kirchhoff’s Rules
Module 6: Wheatstone bridge and Meter bridge

Week 10

Unit 2: Current and Electricity
Module 7: Potentiometer

Module 8: Electrical energy and power

Week 11

Unit 2: Current and Electricity
Unit 2: Current and Electricity _Study Guide

Week 12

Unit 3: Magnetic Effects Of Current and Magnetism

Module 1: Biot Savarts law Module 2: Problems based on Biot Savart’s law

Week 13

Unit 3: Magnetic Effects Of Current and Magnetism

Module 3: Ampere’s Law Module 4: Cyclotron

Week 14

Unit 3: Magnetic Effects Of Current and Magnetism

Module 5: Magnetic force between current carrying parallel conductors Module 6: Torque and Current loop

Week 15

Unit 3: Magnetic Effects Of Current and Magnetism

Module 7: Moving Coil Galvanometer Module 8: Magnetic dipole and magnetic dipole moment

Week 16

Unit 3: Magnetic Effects Of Current and Magnetism

Module 9: Magnetic properties of materials
Module 10: Earth’s Magnetism

Week 17

Unit 3: Magnetic Effects Of Current and Magnetism
Unit 3: Magnetic effects Of Current and Magnetism _Study Guide

Week 18

Unit 4: Electromagnetic Induction and Alternating Current

Module 1: Electromagnetic induction Module 2: Lenz’s law and Motional emf

Week 19

Unit 4: Electromagnetic Induction and Alternating Current

Module 3: Eddy currents Module 4: Alternating current

Week 20

Unit 4: Electromagnetic Induction and Alternating Current

Module 5: AC circuit applied to a Resistance, a Capacitor or an Inductor Module 6: RL, RC and LC AC Circuit and LC oscillations

Week 21

Unit 4: Electromagnetic Induction and Alternating Current

Module 7: LCR circuit Module 8: Transformer

Week 22

Unit 4: Electromagnetic Induction and Alternating Current
Module 9: Power transmission in AC
Unit 4: Electromagnetic Induction and Alternating Current _Study guide

Week 23

Unit 5: Electromagnetic Waves

Module 1: Electromagnetic waves-1 Module 2: Electromagnetic waves-2

Week 24

Unit 5: Electromagnetic Waves
Unit 5: Electromagnetic Waves _Study Guide