For step down transformer, Ns _ Np
Correct answer: B. Less than (<)
- A. Equal to (=)
- B. Less than (<)
- C. Greater than(>)
- D. Not equal
Explanation
In a step-down voltage, we decrease the voltage from the primary to the secondary voltage. Since voltage and number of turns are directly proportional, the number of turns in the secondary voltage (Ns) Should be lesser than the number of turns in the primary coil (Np).
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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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