Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

A transformer contains $N_p$ turns in the primary coil and $N_s$ turns in the secondary coil. Which row shows the values of $N_p$ and $N_s$ for a transformer that increases a voltage from $1200\,\text{V}$ to $36\,000\,\text{V}$?

  • A$N_p = 2000,\; N_s = 60\,000$
  • B$N_p = 2000,\; N_s = 600\,000$
  • C$N_p = 60\,000,\; N_s = 2000$
  • D$N_p = 600\,000,\; N_s = 2000$

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