Discussion

Calculate the Volts per turn:

Answer: D

The volts per turn is 0.125.

Volts per turn is the applied voltage divided by the turns on that winding:

\[ \begin{aligned} \frac{V_{1}}{N_{1}} &= \frac{100}{800} \\ &= 0.125\ \text{V per turn} \end{aligned} \]

The secondary gives the same figure, \(25/200 = 0.125\), as it must, since both windings link the same flux.

8 is turns per volt (\(800/100\)) rather than volts per turn, 4 is the turns ratio \(800/200\), and 0.25 is double the correct figure.

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