Transformers A transformer is an efficient device because it _______ Uses inductive coupling Uses electric coupling Is a static device Uses capacitive coupling Uses inductive coupling Uses electric coupling Is a static device Uses capacitive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Less than Higher than Equal to None of the listed here Less than Higher than Equal to None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Low voltage winding Secondary winding High voltage winding Primary winding Low voltage winding Secondary winding High voltage winding Primary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 0.4 0.96 4 9.6 0.4 0.96 4 9.6 ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 25% load 90% load 50% load Zero load 25% load 90% load 50% load Zero load ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Total equivalent resistance Turn ratio Copper losses Total equivalent leakage reactance Total equivalent resistance Turn ratio Copper losses Total equivalent leakage reactance ANSWER DOWNLOAD EXAMIANS APP
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