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TRANSFORMERS

Transformers
When the secondary of a transformer is short circuited, the primary inductance _______

None of the listed here
Remians unchanged
Is increased
Is decreased

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Transformers
Transformer having ratings less than 5kVA are generally ______

Oil cooled
None of the listed here
Natural air cooled
Water cooled

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Transformers
When load on a transformer is increased, the eddy current _____

Is decreased
None of the listed here
Is increased
Remains unchanged

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Transformers
The transformer that should never the secondary open circuited when primary is energised is _______

Voltage transformer
Power transformer
Current transformer
Auto transformer

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Transformers
When load on a transformer is decreased, ______loss is decreased

Eddy current
Copper
Hysteresis
Friction

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