Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 88 V 8.8 V 8,800 V 880 V 88 V 8.8 V 8,800 V 880 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to one great than one None of these less than one approximately equal to one great than one None of these less than one ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ Either high or low voltage winding None of the listed here High voltage winding Low voltage winding Either high or low voltage winding None of the listed here High voltage winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Magnetising current is greatly increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased Magnetising current is greatly increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine eddy current losses copper losses core losses hysteresis losses eddy current losses copper losses core losses hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its temperature rise dielectric strength of oil voltage ratio copper loss temperature rise dielectric strength of oil voltage ratio copper loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS