Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

For a transformer, the primary coil contains $N_p$ turns and the secondary coil contains $N_s$ turns. Which row shows the values of $N_p$ and $N_s$ for a transformer that increases a voltage of $1200\,\text{V}$ 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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