Transformers The approximate efficiency of a large transformer is 95% 50% 80% 65% 95% 50% 80% 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Low voltage winding High voltage winding Primary winding Secondary winding Low voltage winding High voltage winding Primary winding Secondary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Apparent power Leakage reactance None of the listed here Reactive power Apparent power Leakage reactance None of the listed here Reactive power 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 ? 6250 Ω 250 Ω 25 Ω 62500 Ω 6250 Ω 250 Ω 25 Ω 62500 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 4 μH 8 μH 2 μH 2 mH 4 μH 8 μH 2 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Copper losses Leakage reactance Iron losses Winding resistance Copper losses Leakage reactance Iron losses Winding resistance ANSWER DOWNLOAD EXAMIANS APP
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