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 62500 Ω 6250 Ω 25 Ω 250 Ω 62500 Ω 6250 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. None of the listed here The same as More than Less than None of the listed here The same as More than Less than ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Circular type Cylindrical type Sandwich type Rectangular type Circular type Cylindrical type Sandwich type Rectangular type ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Does not work None of the listed here Has same number of primary and secondary turns Has no losses and leakage reactance Does not work None of the listed here Has same number of primary and secondary turns Has no losses and leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Frequency Current Voltage Power Frequency Current Voltage Power ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 400 W 200 W 50 W 100 W 400 W 200 W 50 W ANSWER DOWNLOAD EXAMIANS APP
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