Discover how eddy currents work, their real-world uses, and boost your Physics grades. Learn step-by-step with Vedantu. Eddy current , in electricity, motion of electric charge induced entirely within a conducting material by a varying electric or magnetic field or by electromagnetic waves. Eddy currents induced in a power transformer core represent lost power and are undesirable; eddy currents used to produce heat Understand eddy current with clear definitions, formulas, and practical uses for exams. Learn loss reduction, NDT, and real-life examples in Physics.