To calculate the transformer turns ratio, you'll need the primary and secondary voltage values. The formula is:
\[
\text{Turns Ratio} = \frac{V_p}{V_s}
\]
where \(V_p\) is the primary voltage and \(V_s\) is the secondary voltage. For example, if the primary voltage is 240V and the secondary voltage is 120V, the turns ratio would be \( \frac{240}{120} = 2\). This means there are two turns in the primary winding for every turn in the secondary winding. Would you like to delve into a specific example or application?