Transformers A transformer is an efficient device because Uses capacitive coupling Uses inductive coupling A static device Uses electric coupling Uses capacitive coupling Uses inductive coupling A static device Uses electric coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Eddy current loss Hysteresis loss Copper loss Leakage reactance Eddy current loss Hysteresis loss Copper loss Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 6 V 0 V 48 V 0.75 V 6 V 0 V 48 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage primary turns to secondary turns secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 250 Ω 25 Ω 6250 Ω 62500 Ω 250 Ω 25 Ω 6250 Ω 62500 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be 330 kV lkV 100 kV 33 kV 330 kV lkV 100 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
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