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Transformers
A transformer is an efficient device because
Uses capacitive coupling
Uses inductive coupling
Uses electric coupling
A static device
Uses capacitive coupling
Uses inductive coupling
Uses electric coupling
A static device
Answer
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Related Question
Transformers
The dielectric strength of transformer oil is expected to be
330 kV
33 kV
100 kV
lkV
330 kV
33 kV
100 kV
lkV
Answer
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Transformers
The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns?
210
900
350
450
210
900
350
450
Answer
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Transformers
Sumpner's test is conducted on transformers to determine
temperature
all-day efficiency
stray losses
None of these
temperature
all-day efficiency
stray losses
None of these
Answer
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Transformers
A step up transformer increases
Current
Frequency
Voltage
Power
Current
Frequency
Voltage
Power
Answer
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Transformers
The primary and secondary windings are wound on the top of each other in order to reduce ______
Winding resistance
Iron losses
Copper losses
Leakage reactance
Winding resistance
Iron losses
Copper losses
Leakage reactance
Answer
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