what is the formula for the transformation ratio of the single phase transformer?

The transformation ratio of a single-phase transformer is defined as the ratio of the primary voltage (Vp) to the secondary voltage (Vs). The formula is given by:
[ text{Transformation Ratio} = frac{V_p}{V_s} ]
This ratio indicates how the voltage changes between the primary and secondary windings. It can also be expressed in terms of the number of turns in the windings, as:
[ text{Transformation Ratio} = frac{N_p}{N_s} ]
Where (N_p) is the number of turns in the primary winding and (N_s) is the number of turns in the secondary winding.