A setup transformer is that which :

Explanation

A step-up transformer is a type of transformer that increases the voltage of an alternating current (AC) while decreasing the current. It consists of two coils of wire, known as the primary coil and the secondary coil, which are wrapped around a common iron core. The primary coil is connected to the input voltage source, and the secondary coil is connected to the load or the device that requires a higher voltage. When an AC current flows through the primary coil, it creates a changing magnetic field in the iron core. This changing magnetic field induces a voltage in the secondary coil according to Faraday's law of electromagnetic induction. The voltage ratio between the primary and secondary coils is determined by the ratio of the number of turns in each coil. In a step-up transformer, the number of turns in the secondary coil is greater than the number of turns in the primary coil. This arrangement allows the transformer to increase the voltage while decreasing the current.