Transformers A common method of cooling a power transformer is natural air cooling Any of these air blast cooling oil cooling natural air cooling Any of these air blast cooling oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 62500 Ω 25 Ω 250 Ω 6250 Ω 62500 Ω 25 Ω 250 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Oil cooled Water cooled Air cooled None of the listed here Oil cooled Water cooled Air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 6 V 0 V 48 V 0.75 V 6 V 0 V 48 V ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Produces mutually induced emf Is negligible at full load Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Produces mutually induced emf Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has core of stainless steel and winding of pure copper metal no losses and magnetic leakage interleaved primary and secondary windings a common core for its primary and secondary windings core of stainless steel and winding of pure copper metal no losses and magnetic leakage interleaved primary and secondary windings a common core for its primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
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