In an ideal transformer the voltage on the driven side and the voltage on the loaded side are the same as the ratios of the number of turns of the transformer.
The current is proportional to 1/ratio. (This is because power must be conserved, over the long run.)
The ratio between the impedance (resistance and reactance) of the load on the loaded side and the impedance (resistance and reactance) seen by the source driving on the primary side is equal to the square of the ratio of the turns.