A Tokamak is a device designed to confine and control hot plasma using magnetic fields, aiming to achieve nuclear fusion. It consists of a doughnut-shaped chamber where hydrogen isotopes are heated to extreme temperatures, allowing them to fuse and release energy, similar to processes occurring in the sun. The Tokamak uses powerful electromagnets to create a magnetic field that keeps the plasma stable and away from the walls of the chamber. This technology is a key area of research in the quest for sustainable and clean energy, as successful fusion could provide a nearly limitless energy source with minimal environmental impact.