In a transformer, the laminated iron core has reduced the eddy current because the plates in thetransformer are
Correct answer: B. insulated from each other.
- A. made up of iron metal.
- B. insulated from each other.
- C. separated with metallic laminations.
- D. separated with laminations having winding wires.
Explanation
Eddy currents are induced in the core of a transformer when there is a changing magnetic flux. These currents cause energy loss in the form of heat. To reduce these eddy currents, the iron core is laminated, meaning it is made up of thin sheets (plates) that are insulated from each other. This insulation increases the resistance to the flow of eddy currents, thereby reducing their magnitude and the associated energy loss.
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About Transformers
Transformers transfer alternating electrical energy between coils by mutual induction, with voltage ratio determined by the turns ratio. The topic covers step-up and step-down transformers, current changes, ideal power conservation and practical losses such as heating and flux leakage. A transformer requires changing magnetic flux, so it does not operate with steady direct current.
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