Transformers The eddy current loss in a transformer is directly proportional to _______. The supply frequency Square of thickness of core lamination Thickness of core lamination The flux density in the core The supply frequency Square of thickness of core lamination Thickness of core lamination The flux density in the core ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same efficiency same number of turns on the secondary side. same kVA rating same polarity same efficiency same number of turns on the secondary side. same kVA rating same polarity ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. Magnetically Electrically and magnetically None of the listed here Electrically Magnetically Electrically and magnetically None of the listed here Electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss magnetising current copper loss magnetising current and loss efficiency core loss magnetising current copper loss magnetising current and loss efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 μH 8 μH 4 μH 2 mH 2 μH 8 μH 4 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 25 per cent 100 per cent 98 per cent 50 per cent 25 per cent 100 per cent 98 per cent 50 per cent ANSWER DOWNLOAD EXAMIANS APP
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