Transformers Efficiency of a power transformer is of the order of 50 per cent 25 per cent 98 per cent 100 per cent 50 per cent 25 per cent 98 per cent 100 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 0.18 5.5 0.018 18 0.18 5.5 0.018 18 ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Secondary winding only Both primary and secondary windings Primary winding only None of the listed here Secondary winding only Both primary and secondary windings Primary winding only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around 10% overload no-load half-load near full-load 10% overload no-load half-load near full-load ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is less than one None of these great than one approximately equal to one less than one None of these great than one approximately equal to one ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability All of the listed here Low hysteresis loss High silicon content High permeability All of the listed here Low hysteresis loss High silicon content ANSWER DOWNLOAD EXAMIANS APP
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