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 ? 250 Ω 6250 Ω 62500 Ω 25 Ω 250 Ω 6250 Ω 62500 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 3-5% 15-30% 30-40% Above 40% 3-5% 15-30% 30-40% Above 40% ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Sandwich type Rectangular type Cylindrical type Circular type Sandwich type Rectangular type Cylindrical type Circular type ANSWER DOWNLOAD EXAMIANS APP
Transformers The highest voltage for transmitting electrical power in india is 400 kV 66 kV 132 kV 33 kV 400 kV 66 kV 132 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Is negligible at full load Produces mutually induced emf Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Is negligible at full load Produces mutually induced emf ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ None of the listed here Reactive power Apparent power Leakage reactance None of the listed here Reactive power Apparent power Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
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