Study Chapter Details
UP Board Class 12 Physics – Magnetism and Matter
“Magnetism and Matter” is a crucial chapter in UP Board Class 12 Physics that helps students understand the magnetic properties of materials and the behavior of magnets in nature. The chapter begins with the concept of the bar magnet, magnetic dipole, magnetic moment, and the analogy between electric dipoles and magnetic dipoles.
Students learn about the earth’s magnetism, including magnetic declination, inclination, and horizontal component of earth’s magnetic field. These concepts explain how compasses work and why navigation depends on magnetic principles.
A major part of the chapter discusses different types of magnetic materials—diamagnetic, paramagnetic, and ferromagnetic substances—along with their properties and applications in daily life. The chapter also covers hysteresis, which is essential for understanding permanent magnets and transformer cores.
The torque on a magnetic dipole, magnetic intensity, and susceptibility help students strengthen their conceptual understanding. This chapter forms the foundation for advanced electromagnetic applications used in motors, generators, and storage devices.
