Railways
General Science & Technology
Alternating Current / प्रत्यावर्ती धारा
Sample Paper
Alternating Current and Electromagnetic Induction Sample Test Paper-10
question_answer
Large transformers, when used for some time, become hot and are cooled by circulating oil. The heating of transformer is due to
A) Heating effect of current alone
B) Hysteresis loss alone
C) Both the hysteresis loss and heating effect of current