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Transformers
The iron core is used to ______of the transformer.
None of the listed here
Provide tight magnetic coupling
Increase the wight
Reduce core loss
None of the listed here
Provide tight magnetic coupling
Increase the wight
Reduce core loss
Answer
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Related Question
Transformers
The main reason for generation of harmonics in a transformer could be
saturation of core
poor insulation
fluctuating load
mechanical vibrations
saturation of core
poor insulation
fluctuating load
mechanical vibrations
Answer
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Transformers
The primary winding of a power transformer should always be
fused
shorted
open
switched
fused
shorted
open
switched
Answer
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Transformers
Harmonics in transformer result in
magnetic interference with communication circuits
All of the listed here
increased I2R losses
increased core losses
magnetic interference with communication circuits
All of the listed here
increased I2R losses
increased core losses
Answer
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Transformers
Which of the following transformer is smallest?
2kVA, 200 Hz
2kVA, 400 Hz
2kVA, 500 Hz
2kVA, 50 Hz
2kVA, 200 Hz
2kVA, 400 Hz
2kVA, 500 Hz
2kVA, 50 Hz
Answer
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Transformers
An isolation transformer has primary to secondady turns ratio of
1:1
Can be any ratio
2:1
1:2
1:1
Can be any ratio
2:1
1:2
Answer
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