2. Sample Papers
  3. Railways
  4. General Science & Technology
  5. Alternating Current / प्रत्यावर्ती धारा

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

    D)  None of the above

    Correct Answer: C

You need to login to perform this action.
You will be redirected in 3 sec spinner