Transformers In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues? 0 W 111.5 W 14.1 W 1,020 W 0 W 111.5 W 14.1 W 1,020 W ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 0.18 0.018 5.5 18 0.18 0.018 5.5 18 ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High silicon content All of the listed here Low hysteresis loss High permeability High silicon content All of the listed here Low hysteresis loss High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine copper loss magnetising current and loss efficiency core loss magnetising current copper loss magnetising current and loss efficiency core loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Higher than Equal to None of the listed here Less than Higher than Equal to None of the listed here Less than ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 400 Hz 2kVA, 200 Hz 2kVA, 500 Hz 2kVA, 50 Hz 2kVA, 400 Hz 2kVA, 200 Hz 2kVA, 500 Hz 2kVA, 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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