Transformers Negative voltage regulation is indicative that the load is capacitive only inductive only inductive or resistive None of these capacitive only inductive only inductive or resistive None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of more than 15 A None of these less than 15 A 15 A more than 15 A None of these less than 15 A 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as zoom buzz hum ringing zoom buzz hum ringing ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its dielectric strength of oil temperature rise voltage ratio copper loss dielectric strength of oil temperature rise voltage ratio copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 100 per cent 50 per cent 98 per cent 25 per cent 100 per cent 50 per cent 98 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen ANSWER DOWNLOAD EXAMIANS APP
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