Physics 5054 · O Level · The transformer

The transformer — practice question

A transformer has an input voltage of $24\ \text{V a.c.}$ and an output voltage of $6.0\ \text{V}$. The input coil has $720$ turns. How many turns are there on the output coil?

  • A$5$
  • B$180$
  • C$2900$
  • D$100\,000$

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