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 25 Ω 62500 Ω 250 Ω 6250 Ω 25 Ω 62500 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 88 V 8,800 V 880 V 8.8 V 88 V 8,800 V 880 V 8.8 V ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Auto transformer Potential transformer Step-up transformer Current transformer Auto transformer Potential transformer Step-up transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The amount of copper in the primary is _______that of secondary. About the same as Smaller than Greater than None of the listed here About the same as Smaller than Greater than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Iron losses Friction losses Total losses Copper losses Iron losses Friction losses Total losses Copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Sandwich type Cylindrical type Circular type Rectangular type Sandwich type Cylindrical type Circular type Rectangular type ANSWER DOWNLOAD EXAMIANS APP
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