A step-up transformer has a primary coil with 100 turns and a secondary coil with 25 turns. If the input voltage in the primary coil is 40 volts, what is the output voltage reduced to in the secondary coil?
Plz see the attachment. Your question is wrong. It is not a step up transformer. It is step down transformer. Step Up Transformer increase the voltage at the output and step down Transformer decrease the voltage at the output.
