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

इंडियन गवर्नमेंट एग्जाम प्रेप

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

Correct Answer: C

Solution & Explanation

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