NCERT Grade 12 Physics, Chapter 4, Moving Charges and Magnetism from Unit 3, Moving Effect of Current and Magnetism. In this chapter, students will see how magnetic field exerts forces on moving charged particles, like electrons, protons, and current-carrying wires. Students shall also learn how currents produce magnetic fields. They shall see how particles can be accelerated to very high energies in a cyclotron, how currents and voltages are detected by a galvanometer.
Magnetic Force, Sources and fields, Magnetic Field, Lorentz Force, Magnetic force on a current-carrying conductor, Motion in a Magnetic Field, Motion In Combined Electric and Magnetic Fields, Velocity selector, Cyclotron, Magnetic Field Due to a Current Element, Biot - Savart Law, Magnetic Field on the axis of a Circular Current Loop, Ampere’s Circuital Law, The Solenoid and The Toroid, Force Between Two Parallel Currents, The Ampere, Torque on Current Loop, Magnetic Dipole, Torque on a rectangular current loop in a uniform magnetic field, Circular current loop as a magnetic dipole, The magnetic dipole moment of a revolving electron, The Moving Coil Galvanometer are the topics discussed in this chapter.
Diagrams, graphs, illustrations, energy diagrams and examples associated to daily life make this chapter very interesting and easy to learn. Solved numeral problems and unsolved for practice make the students understand the concept better and develop a strong grip on the subject. The contribution of eminent scientists such as Oerested and Lorentz towards magnetism has helped to develop laws on magnetism. NCERT Grade 12 Physics, Chapter 4, Moving Charges and Magnetism from Unit 3, Moving Effect of Current and Magnetism. Unit 3 holds a total weightage of 8 marks in the final examination according to the latest pattern.
Get 100 percent accurate NCERT Solutions for Class 12 Physics Chapter 4 (Moving Charges and Magnetism) solved by expert Physics teachers. We provide solutions for questions given in Class 12 Physics text-book as per CBSE Board guidelines from the latest NCERT book for Class 12 Physics. The topics and sub-topics in Chapter 4 Moving Charges and Magnetism are given below.
Ex 4.1 - INTRODUCTION
Ex 4.2 - MAGNETIC FORCE
Ex 4.2.1 - Sources and fields
Ex 4.2.2 - Magnetic Field, Lorentz Force
Ex 4.2.3 - Magnetic force on a current-carrying conductor
Ex 4.3 - MOTION IN A MAGNETIC FIELD
Ex 4.4 - MOTION IN COMBINED ELECTRIC AND MAGNETIC FIELDS
Ex 4.4.1 - Velocity selector
Ex 4.4.2 - Cyclotron
Ex 4.5 - MAGNETIC FIELD DUE TO A CURRENT ELEMENT, BIOT-SAVART LAW
Ex 4.6 - MAGNETIC FIELD ON THE AXIS OF A CIRCULAR CURRENT LOOP
Ex 4.7 - AMPERE’S CIRCUITAL LAW
Ex 4.8 - THE SOLENOID AND THE TOROID
Ex 4.8.1 - The solenoid
Ex 4.8.2 - The toroid
Ex 4.9 - FORCE BETWEEN TWO PARALLEL CURRENTS, THE AMPERE
Ex 4.10 - TORQUE ON CURRENT LOOP, MAGNETIC DIPOLE
Ex 4.10.1 - Torque on a rectangular current loop in a uniform magnetic field
Ex 4.10.2 - Circular current loop as a magnetic dipole
Ex 4.10.3 - The magnetic dipole moment of a revolving electron
Ex 4.11 - THE MOVING COIL GALVANOMETER.
We cover all exercises in the chapter given below:-
Chapter 4 Exercises - 28 Questions with solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Moving Charges and Magnetism. Download the free PDF of Chapter 4 Moving Charges and Magnetism and take the print out to keep it handy for your exam preparation.