WAEC Physics 2025 Objective — Question 31
Question 31 of 51 from the West African Examinations Council (WAEC) Physics 2025 Objective paper, with the correct answer and a full explanation.
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Which of the following statements about a step-up transformer is correct?
- A. It has less number of turns in the primary coil than in the secondary coilCorrect
- B. It has more number of turns in the primary coil than in the secondary coil
- C. It has equal number of turns in the primary coil and the secondary coil
- D. Its primary coil is far away from the secondary coil
Explanation
For a step-up transformer, Ns > Np and Vs > Vp, meaning the primary coil has fewer turns than the secondary coil.
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