current through load resistance

Hello All, I have a wall adapter that outputs 24v AC and a small motor that requires 6v AC what resistor value is required for this voltage, please? Are resistors the same for AC as DC?

My approach: We find Thevenin's resistance Using the node analysis approach figure out Thevenin's voltage. And finally the current through the load resistance. Am I doing it correctly? Any suggestion or advice is highly precious to me, thank you