power is measured in watts (W) potential difference is measured in volts (V) current is measured in amperes, also referred to as amps (A) A step-down transformer converts 11,500 V into 230 V.

In a step-down transformer, the potential difference in the primary coil is greater than the potential difference in the secondary coil. A mains transformer (230 V) has 11,500 turns on its primary ...