Transformers If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is 25 W 2.5 W 250 W 0 W 25 W 2.5 W 250 W 0 W ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because it _______ Uses electric coupling Is a static device Uses capacitive coupling Uses inductive coupling Uses electric coupling Is a static device Uses capacitive coupling Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of 1:1 2:1 1:2 Can be any ratio 1:1 2:1 1:2 Can be any ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Oil cooled Natural air cooled None of the listed here Water cooled Oil cooled Natural air cooled None of the listed here Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Decreases copper losses Increase copper losses Cause voltage drop in the windings None of the listed here Decreases copper losses Increase copper losses Cause voltage drop in the windings None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is great than one less than one None of these approximately equal to one great than one less than one None of these approximately equal to one ANSWER DOWNLOAD EXAMIANS APP
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