Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 12 V 2,400 V 240 V 120 V 12 V 2,400 V 240 V 120 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because 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 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 ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Self induction Static induction Mutual induction Dynamic induction Self induction Static induction Mutual induction Dynamic induction ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 500 kVA 1000 kVA 250 kVA 3000 kVA 500 kVA 1000 kVA 250 kVA 3000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here Adjustments in secondary voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ None of the listed here Low voltage winding Either high or low voltage winding High voltage winding None of the listed here Low voltage winding Either high or low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
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