Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to Options: A . &nbspthe heating effect of current alone B . &nbsphysteresis loss alone C . &nbspboth the heating effect of current and hysteresis loss D . &nbspintense sunlight at noon

Large transformers, when used for some time, become very hot and are cooled by c

Question

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

Options:

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

Answer: Option C
Answer: (c).both the heating effect of current and hysteresis loss

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