AC vs DC Explained – Alternating vs Direct Current, How Electricity Works and Why Both Are Used

What is the difference between AC (alternating current) and DC (direct current), and why does the modern world use both? In this video, we explain electricity step by step – how AC is generated in power plants using electromagnetic induction and how DC is produced by batteries and electronics. Learn why AC is ideal for long-distance power transmission using transformers and high voltage, and why DC is essential for electronics, computers, smartphones, batteries, and renewable energy systems. We also cover AC to DC conversion, power supplies, inverters, HVDC transmission, efficiency, losses, and real-world applications. A complete, detailed, and easy-to-understand explanation of AC vs DC and how electricity works. #AC #DC #electricity #howitworks #engineering #technology #energy #physics #science #education