Transformers The turns ratio required to match an 80 source to a 320 load is 4 80 2 20 4 80 2 20 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 ? 25 Ω 250 Ω 62500 Ω 6250 Ω 25 Ω 250 Ω 62500 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Two things which are same for primary and secondary of transformer are ______ Ampere turns and voltage per turns Currents and induced voltages None of the listed here Resistance and leakage reactances Ampere turns and voltage per turns Currents and induced voltages None of the listed here Resistance and leakage reactances ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of 15 A more than 15 A None of these less than 15 A 15 A more than 15 A None of these less than 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Sandwich type Circular type Rectangular type Cylindrical type Sandwich type Circular type Rectangular type Cylindrical type ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are about the same somewhat smaller much higher much smaller about the same somewhat smaller much higher much smaller ANSWER DOWNLOAD EXAMIANS APP