1.
The value of flux involved m the e.m.f. equation of a transformer is
2.
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are
3.
The changes in volume of transformer cooling oil due to variation of atmospheric tem-perature during day and night is taken care of by which part of transformer
4.
Star/star transformers work satisfactorily when
5.
Delta/star transformer works satisfactorily when
6.
In a transformer the resistance between its primary and secondary should be
7.
Gas is usually not liberated due to dissociation of transformer oil unless the oil temperature exceeds
8.
For given applied voltage, with the increase in frequency of the applied voltage
9.
In an actual transformer the iron loss remains practically constant from noload to fullload because
10.
The chemical used in breather is