Which of the fpllowing inductor will have the least eddy current losses ?
Correct answer: A. Air core
- A. Air core
- B. Laminated iron core
- C. Iron core
- D. Powdered iron core
Explanation
An air-core inductor has no conducting magnetic core in which circulating eddy currents can form, so its eddy-current loss is least. Laminated and powdered cores reduce eddy currents but do not eliminate them completely.
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