CHAPTER-4 Magnetic Effects of Current
Magnetic Effects of Current is an essential chapter in Class 12 Physics that explains how electric current produces a magnetic field. It covers Oersted’s experiment, Biot-Savart law, Ampere’s circuital law, and the magnetic field due to current in various configurations like straight wires, circular loops, and solenoids. The chapter also introduces the concept of force on a current-carrying conductor in a magnetic field, torque on current loops, and working principles of devices like galvanometers. This chapter lays the foundation for understanding electromagnetism and its applications in motors, generators, and other technologies.
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