Question

The core of a transformer is laminated to reduce

• A. flux leakage
• B. hysteresis
• C. copper loss
• D. eddy current

Answer 1

The correct option is D eddy current

Eddy flow in circular loops in the core of the transformer resulting into heat losses.They can be induced within nearby stationary conductors by a time-varying magnetic field or by relative motion between a magnet and a nearby conductor. Laminating the core reduces eddy current and thus increases the efficiency.