A step-up transformer is one that:
Correct answer: B. Increase the voltage
- A. Increase the power
- B. Increase the voltage
- C. Increase the energy
Explanation
A step-up transformer is a transformer that increases the voltage from the primary coil to the secondary coil.
This question appeared on the ETEA MDCAT 2014 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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