The purpose of providing an iron core in a transformer is to
A. provide support to windings
B. reduce hysteresis loss
C. decrease the reluctance of the magnetic path
D. reduce eddy current losses
Answer: Option C
Solution (By Examveda Team)
The purpose of providing an iron core in a transformer is to decrease the reluctance of the magnetic path.The iron core is used to improve the efficiency of the transformer by providing a low reluctance path for the magnetic flux. This allows the transformer to transfer electrical energy more effectively between its windings.
Key Points:
Iron Core: Reduces the reluctance (magnetic resistance) of the magnetic path, enhancing the transformer's efficiency.
Reluctance: The resistance to the flow of magnetic flux. By decreasing reluctance, the core helps in better flux linkage between the primary and secondary windings.
This Question Belongs to Electrical Engineering >> Transformers
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Comments (2)
The purpose of providing an iron core in a transformer is to
A. provide support to windings
B. reduce hysteresis loss
C. decrease the reluctance of the magnetic path
D. reduce eddy current losses
A good voltage regulation of a transformer means
A. output voltage fluctuation from no load to full load is least
B. output voltage fluctuation with power factor is least
C. difference between primary and secondary voltage is least
D. difference between primary and secondary voltage is maximum
If the percentage impedances of the two transformers working in parallel are different, then
A. transformers will be overheated
B. power factors of both the transformers will be same
C. parallel operation will be not possible
D. parallel operation will still be possible, but the power factors at which the two transformers operate will be different from the power factor of the common load
An ideal transformer will have maximum efficiency at a load such that
A. copper loss = iron loss
B. copper loss < iron loss
C. copper loss > iron loss
D. none of the above
to pass same flux from primary side to the secondary winding which was wounded on the common magnetic core should have low reluctance
It also decrease hysteresis loss