Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 9 V 0.9 V 900 V 90 V 9 V 0.9 V 900 V 90 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a high voltage winding None of these could either be a low voltage or high voltage winding is always a low voltage winding is always a high voltage winding None of these could either be a low voltage or high voltage winding is always a low voltage winding 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 V 6 V 48 V 0.75 V 0 V 6 V 48 V 0.75 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 100 per cent 50 per cent 25 per cent 98 per cent 100 per cent 50 per cent 25 per cent 98 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency Inversely proportional to supply frequency Inversely proportional to primary voltage None of the listed here Directly proportional to supply frequency Inversely proportional to supply frequency Inversely proportional to primary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Is negligible at full load Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
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