Description
McGraw Hill Your Personal Coach- Physics - Magnetism And Electromagnetic Induction For Jee 1St Edition by Tiwari, Shashi Bhushan
“Your Personal Coach Physics – Magnetism and Electromagnetic Induction for JEE Main and Advanced” is aimed specifically at aspirants appearing for the JEE examination and has been prepared to enable mastery of the subject. This first edition comes with comprehensive theory, problems, illustrations and graphs to ensure that the readers strengthen their concepts while having enough problems for practice. With a judicious mix of conceptual, analytical and graphical methods, the aim is to cover all possible aspects of the topic in an easily understandable format.
SALIENT FEATURES
• The book contains comprehensive discussion on relevant principles of Physics and has derivations of all-important mathematical expressions. It even gives brief historical backgrounds at relevant places.
• The book has been divided into multiple small chapters so that one can focus on learning one thing at a time.
• Continuity and flow of the subject has been maintained throughout the text.
• Every little principle has been illustrated with solved examples.
• Every example starts with a heading named “Concepts”. This contains explanation of physical situation and gives the important physical principle involved.
• There are in - chapter exercises under the heading “Your Turn”.
• Difficult and tricky problems involving multiple principles and mathematical rigor have been given at the end of each chapter under the name “Miscellaneous Examples”.
• At regular intervals, the important points have been highlighted under the name “In Short”.
• There are 3 exercises at the end of each chapter giving MCQs with one correct answer, MCQs with one or more than one correct answers and subjective problems.
• After every few chapters there is a separate chapter on Miscellaneous Problems. This has Matrix Match type and Passage Based problems.
• Questions asked in JEE – Main and Advanced (erstwhile AIEEE and IIT JEE) from 2005 to 2018 (for chapters covered in the book) has been given at the end of the book.
• Detailed solution to all problems in the book has been given.
TABLE OF CONTENTS
Preface vii
How to use this Book ix
Acknowledgements xi
1. Magnetic Field 1.1–1.48
1. Introduction 1.1
2. Bar Magnet 1.1
2.1 Direction of magnetic field 1.2
2.2 Strength of magnetic field 1.2
2.3 Magnetic field lines due to a bar magnet 1.2
2.4 Magnetic field strength due to a bar magnet 1.2
2.5 Torque on a bar magnet in a uniform magnetic field 1.4
2.6 Potential energy of a magnetic dipole in a magnetic field 1.4
• Your Turn 1.7
3. Sources of Magnetic Field 1.7
4. Magnetic Force on Moving Charged Particles 1.7
• Your Turn 1.8
4.1 Circular Motion of a Charged Particle in a Magnetic Field 1.9
• Your Turn 1.12
4.2 Helical Path of a Charged Particle in a Magnetic Field. 1.12
• Your Turn 1.15
5. Motion of A Charged Particle in Electric And Magnetic Field 1.15
5.1 Velocity Selector 1.15
5.2 Mass spectrometer 1.15
5.3 Cyclotron 1.16
• Your Turn 1.18
6. Magnetic Force on a Current Carrying Wire 1.18
• Your Turn 1.20
7. Current Loop As a Magnetic Dipole 1.21
• Your Turn 1.23
8. Current Loop In A uniform Magnetic Field 1.24
• Your Turn 1.25
9. Moving Coil Galvanometer 1.25
• Your Turn 1.26
? Miscellaneous Examples 1.27
? Worksheet 1 1.36
? Worksheet 2 1.41
? Worksheet 3 1.43
? Answer Sheet 1.47
2. Magnetic Effect of Current 2.1–2.41
1. Introduction 2.1
2. Biot-Savart Law 2.1
• Your Turn 2.2
3. Calculation of Magnetic Field Using Biot-Savart Law 2.3
3.1 Field due to a straight current carrying wire 2.3
• Your Turn 2.7
3.2 Magnetic field at the centre of a current carrying circular arc 2.8
• Your Turn 2.10
3.3 Magnetic Field on the axis of a current carrying circular loop 2.11
• Your Turn 2.12
3.4 Helmholtz Coils 2.12
3.5 Solenoid 2.12
• Your Turn 2.14
4. Ampere’s Circuital Law 2.15
5. Applications of Ampere’s Law 2.16
5.1 Field due to a long straight current carrying wire 2.16
5.2 Field inside an ideal solenoid 2.17
5.3 Toroid 2.17
5.4 Field due to a large current sheet 2.18
• Your Turn 2.19
6. Force Between Parallel Currents 2.20
• Your Turn 2.22
? Miscellaneous Examples 2.23
? Worksheet 1 2.29
? Worksheet 2 2.33
? Worksheet 3 2.36
? Answer Sheet 2.40
3. Miscellaneous Problems on Chapters 1 & 2 3.1–3.10
Match the Columns 3.1
Passage Based Problems 3.4
? Answer Sheet 3.10
4. Magnetic Properties of Matter and Earth’s Magnetism 4.1–4.18
1. Introduction 4.1
2. Atoms as Small Magnets 4.1
3. Paramagnetism 4.2
4. Ferromagnetism 4.2
5. Diamagnetism 4.3
• Your Turn 4.4
6. Magnetisation ( I_ ) 4.5
7. Magnetising Field Intensity (H _ ) 4.5
8. Magnetic Susceptibility (?) 4.5
9. Magnetic Permeability 4.5
• Your Turn 4.6
10. Temperature And Magnetisation 4.6
11. Hysteresis 4.7
12. Perfect Diamagnetism 4.8
13. Cooling By Adiabatic Demagnetization 4.9
14. Earth’s Magnetism 7.9
15. Elements of the Earth’s Magnetic Field 4.10
• Your Turn 4.12
16. Aurora 4.12
? Miscellaneous Examples 4.13
? Worksheet 1 4.15
? Worksheet 2 4.16
? Worksheet 3 4.17
? Answer Sheet 4.18
5. Electromagnetic Induction 5.1–5.63
1. Introduction 5.1
2. Magnetic Flux 5.1
3. Faraday’s Law of Electromagnetic Induction 5.2
4. Lenz’s Law 5.3
• Your Turn 5.6
5. The Source of Induced emf 5.7
5.1 Motional emf 5.7
• Your Turn 5.12
5.2 Induced Electric Field 5.12
• Your Turn 5.14
6. Eddy Current 5.14
• Your Turn 5.16
7. Self Induction 5.16
7.1 Self inductance and Inductors 5.16
• Your Turn 5.17
7.2 Inductor in a circuit 5.17
• Your Turn 5.18
7.3 Self Inductance of an ideal solenoid 5.18
• Your Turn 5.19
8. Transient Current in LR Circuit 5.19
8.1 Growth of current 5.19
8.2 Decay of current 5.20
• Your Turn 5.23
9. Energy Stored in an Inductor 5.23
10. Energy Density in Magnetic Field 5.23
• Your Turn 5.25
11. Inductors in Series and Parallel 5.25
12. LC Oscillations 5.26
• Your Turn 5.29
13. Mutual Induction 5.30
13.1 Mutual Inductance of a pair of coaxial solenoids 5.30
13.2 Mutual inductance of two concentric coplanar loops 5.31
• Your Turn 5.32
? Miscellaneous Examples 5.33
? Worksheet 1 5.47
? Worksheet 2 5.53
? Worksheet 3 5.56
? Answer Sheet 5.63
6. Alternating-Current Circuits 6.1–6.36
1. Introduction 6.1
2. Essential Mathematical Concepts To Deal With Sinusoidal Quantities 6.1
2.1 Average of a quantity 6.1
2.2 Understanding Sinusoidal quantities 6.2
2.3 Addition of sinusoidal quantities having same frequency 6.4
2.4 Phasors 6.5
• Your Turn 6.6
3. AC Generator 6.7
4. Average of AC Current and Voltage 6.7
5. RMS current/voltage 6.7
• Your Turn 6.9
6.AC Circuit With one Element 6.9
6.1 Only Resistor 6.9
6.2 Only Capacitor 6.9
6.3 Only Inductor 6.10
• Your Turn 6.12
7. Series AC Circuits 6.12
7.1 RC circuit 6.12
7.2 LR Circuit 6.13
7.3 LCR Circuit 6.13
• Your Turn 6.16
8. Power in AC Circuits 6.16
9. Choke Coil 6.17
• Your Turn 6.18
10. Resonance on Series LCR Circuit 6.18
• Your Turn 6.21
11. Parallel Circuit 6.21
• Your Turn 6.22
12. Measurement of AC Current and Voltage 6.22
13. Transformer 6.22
• Your Turn 6.24
? Miscellaneous Examples 6.25
? Worksheet 1 6.28
? Worksheet 2 6.31
? Worksheet 3 6.33
? Answer Sheet 6.35
7. Miscellaneous Problems on Chapters 5 and 6 7.1–7.10
Match the Columns 7.1
Passage Based Problems 7.4
? Answer Sheet 7.10
8. Electromagnetic Waves 8.1–8.14
1. Introduction 8.1
2. Ampere’s Law and Displacement Current 8.1
3. Maxwell’s Equations 8.2
• Your Turn 8.4
4. Source of Electromagnetic Waves 8.4
5. Characteristics of Electromagnetic Waves 8.4
• Your Turn 8.7
6. Electromagnetic Spectrum 8.7
? Miscellaneous Examples 8.9
? Worksheet 1 8.11
? Worksheet 2 8.12
? Worksheet 3 8.13
? Answer Sheet 8.14
9. Previous Years' JEE Questions 9.1–12.18
-Magnetic Field 9.1
-AIEEE/JEE Main Questions 9.1
-IIT JEE/JEE Advanced Questions 9.2
-Magnetic Effect of Current 9.4
-AIEEE/JEE Main Questions 9.4
-IIT JEE/JEE Advanced Questions 9.6
-Magnetic Properties of Matter 9.8
-Electromagnetic Induction 9.9
-AIEEE/JEE Main Questions 9.9
-IIT JEE / JEE Advanced Questions 9.10
-AC Circuits 9.13
-AIEEE/JEE Main Questions 9.13
-IIT JEE/JEE Advanced Questions 9.14
-Electromagnetic Waves 9.15
-JEE Main Questions 9.15
- Answer Sheet 9.17
Solutions S.1–S.106