Question

how can eddy currents loss be minimized

Answer 1

Reducing eddy currents. To reduce theeddy currents in the metal armature of motors the wire is wrapped around a number of thin metal sheets called laminations. This is done because theeddy currents would heat up the metal and so reduce (dampen) its efficiency.

Answer 2

In order to reduce the eddy current loss, the resistance of the core should be increased. In other words, low reluctance should be retained. In devices like transformers, the core is made up of laminations of iron.(ie),the core is made up of thin sheets of steel, each lamination being insulated from others.

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