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? 88 V 7.3 V 73 V 880 V 88 V 7.3 V 73 V 880 V ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 95 % 65% 75% 85% 95 % 65% 75% 85% ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has core of stainless steel and winding of pure copper metal interleaved primary and secondary windings a common core for its primary and secondary windings no losses and magnetic leakage core of stainless steel and winding of pure copper metal interleaved primary and secondary windings a common core for its primary and secondary windings no losses and magnetic leakage ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because A static device Uses capacitive coupling Uses electric coupling Uses inductive coupling A static device Uses capacitive coupling Uses electric coupling Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be fused open shorted switched fused open shorted switched ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test on transformers is conducted to determine hysteresis losses copper losses core losses eddy current losses hysteresis losses copper losses core losses eddy current losses ANSWER DOWNLOAD EXAMIANS APP
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