Скачать или смотреть CHAPTER 4-Electromagnetism: Charge, Field, and Force(NCERT 12)

This educational VIDEO explores the fundamental relationship between electricity and magnetism, tracing the historical discovery that moving charges generate magnetic fields. It highlights the pioneering work of scientists like Oersted, Ampere, and Lorentz, who provided the empirical and theoretical foundations for the field of electromagnetism. The material details how magnetic forces act on current-carrying conductors and particles, governed by principles such as the Biot-Savart law and Ampere’s Circuital Law. Key applications are examined, including the mechanics of solenoids, the acceleration of particles in a cyclotron, and the operation of moving coil galvanometers. Furthermore, the text explains how these instruments are modified into ammeters and voltmeters to measure electrical properties accurately. Ultimately, the source emphasizes that electric and magnetic phenomena are unified forces that are essential to modern scientific understanding.