Physics

Electric Current and Flow of Electric Charges in a Metallic Conductor

धात्विक चालक में विद्युत धारा और विद्युत आवेश का प्रवाह

In Class 12 Physics, Chapter 3: Current Electricity, this topic explains how electric charge moves through a metallic conductor and how that motion produces electric current. Students connect the conventional direction of current with the actual drift of free electrons, understand the role of an electric field, and relate charge flow to current, drift speed, and charge density. The topic builds a microscopic understanding of current that supports the study of resistance, Ohm’s law, and electrical circuits.