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NEET PHYSICSALTERNATING CURRENTEasy

Question

The core of a transformer is laminated so that:

A

energy losses due to eddy currents may be minimized

B

the weight of the transformer may be reduced

C

rusting of the core may be prevented

D

the ratio of voltage in primary and secondary may be increased

Step-by-Step Solution

In a transformer, the changing magnetic flux induces small circulating currents called eddy currents in the iron core. These currents produce heat (I2RI^2R loss) and waste energy. To minimize this, the core is laminated, meaning it is made of thin sheets of steel insulated from each other. This increases the resistance to the path of the eddy currents, thereby reducing their magnitude and the consequent energy loss .

Exam Context & Concepts Covered

This question aligns with the NEET PHYSICS syllabus, specifically targeting concepts from ALTERNATING CURRENT. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

PHYSICSALTERNATING CURRENTtransformerlaminated

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