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Transformers
Transformer breaths in when
None of these
load remains constant
load on it increases
load on it decreases
None of these
load remains constant
load on it increases
load on it decreases
Answer
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Related Question
Transformers
When load on a transformer is decreased, ______loss is decreased
Hysteresis
Copper
Friction
Eddy current
Hysteresis
Copper
Friction
Eddy current
Answer
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Transformers
The efficiency of a transformer, under heavy loads, is comparatively low because
copper loss becomes high in proportion to the output
voltage drop both in primary and secondary becomes large
secondary output is much less as compared to primary input
iron loss is increased considerably
copper loss becomes high in proportion to the output
voltage drop both in primary and secondary becomes large
secondary output is much less as compared to primary input
iron loss is increased considerably
Answer
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Transformers
The no load primary current is about ______of full load primary current.
30-40%
3-5%
Above 40%
15-30%
30-40%
3-5%
Above 40%
15-30%
Answer
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Transformers
The leakage flux in a transformer depends upon
load current
load current and voltage
load current, voltage and frequency
load current, voltage, frequency and power factor
load current
load current and voltage
load current, voltage and frequency
load current, voltage, frequency and power factor
Answer
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Transformers
Which winding of the transformer has less cross-sectional area?
Secondary winding
Primary winding
Low voltage winding
High voltage winding
Secondary winding
Primary winding
Low voltage winding
High voltage winding
Answer
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