In an ideal transformer:
Correct answer: A. Power input is equal to Power output.
- A. Power input is equal to Power output.
- B. Power input is less than half of the power output.
- C. Power input is greater than Power output
- D. Power input is more than half of the power output.
Explanation
A is Correct, as an ideal transformer operates with 100% efficiency, meaning no energy is lost
This question appeared on the UHS MDCAT 2024 paper, which you can sit online with every answer explained.
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About Transformers
Transformers transfer alternating electrical energy between coils by mutual induction, with voltage ratio determined by the turns ratio. The topic covers step-up and step-down transformers, current changes, ideal power conservation and practical losses such as heating and flux leakage. A transformer requires changing magnetic flux, so it does not operate with steady direct current.
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