Transformers The flux in the core of a single phase transformer is _____ Purely rotating one Partly alternating and partly rotating Purely alternating one None of the listed here Purely rotating one Partly alternating and partly rotating Purely alternating one None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around near full-load no-load 10% overload half-load near full-load no-load 10% overload half-load ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Cause voltage drop in the windings Decreases copper losses None of the listed here Increase copper losses Cause voltage drop in the windings Decreases copper losses None of the listed here Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses capacitive coupling Uses electric coupling Uses inductive coupling A static device Uses capacitive coupling Uses electric coupling Uses inductive coupling A static device 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 62500 Ω 25 Ω 250 Ω 6250 Ω 62500 Ω 25 Ω 250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS