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Transformers
The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8?
88 V
8,800 V
8.8 V
880 V
88 V
8,800 V
8.8 V
880 V
Answer
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Related Question
Transformers
When load on a transformer is increased, the eddy current _____
Remains unchanged
None of the listed here
Is increased
Is decreased
Remains unchanged
None of the listed here
Is increased
Is decreased
Answer
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Transformers
Cores of large transformers are built upto nearly circular cross section in order to reduce
Iron losses
Eddy current loss
Leakage reactance
Copper loss
Iron losses
Eddy current loss
Leakage reactance
Copper loss
Answer
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Transformers
Short circuit test on transformers is conducted to determine
core losses
copper losses
hysteresis losses
eddy current losses
core losses
copper losses
hysteresis losses
eddy current losses
Answer
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Transformers
If a transformer core has air gaps, then, _________
Eddy current is increased
Reluctance of magnetic path is decreased
Hysteresis loss is decreased
Magnetising current is greatly increased
Eddy current is increased
Reluctance of magnetic path is decreased
Hysteresis loss is decreased
Magnetising current is greatly increased
Answer
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Transformers
The flux in the core of a single phase transformer is _____
Purely rotating one
Purely alternating one
None of the listed here
Partly alternating and partly rotating
Purely rotating one
Purely alternating one
None of the listed here
Partly alternating and partly rotating
Answer
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