GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
5. | Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to | |
A. | the heating effect of current alone | |
B. | hysteresis loss alone | |
C. | both the heating effect of current and hysteresis loss | |
D. | intense sunlight at noon | |