Question

Eddy currents in the core of transformer can't be developed

• A. by increasing the number of turns in secondary coil
• B. by taking laminated transformer
• C. by making step down transformer
• D. by using a weak a.c. at high potential

Answer 1

Answer: (B)

by taking laminated transformer

Eddy currents are locally generated current loops in the transformer core. This happens because transformer core is in close proximity of the varying magnetic field of the primary.Eddy current is a loss. To reduce this loss, core is made from bundle of thin laminated sheets.