Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 73 V 880 V 88 V 7.3 V 73 V 880 V 88 V 7.3 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Natural air cooled None of the listed here Water cooled Oil cooled Natural air cooled None of the listed here Water cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer does not posses ______changing property. Impedance Power Voltage Current Impedance Power Voltage Current ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has 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 core of stainless steel and winding of pure copper metal no losses and magnetic leakage interleaved primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 50% load 90% load 25% load Zero load 50% load 90% load 25% load Zero load ANSWER DOWNLOAD EXAMIANS APP
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