Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same kVA rating same number of turns on the secondary side. same polarity same efficiency same kVA rating same number of turns on the secondary side. same polarity same efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 18 V 2 V 180 V 20 V 18 V 2 V 180 V 20 V ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 48 V 6 V 0 V 0.75 V 48 V 6 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Less than Equal to None of the listed here Higher than Less than Equal to None of the listed here Higher than ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has small magnitude and low power factor has high magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor has small magnitude and low power factor has high magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor ANSWER DOWNLOAD EXAMIANS APP