A model electric train requires 9 volts to operate. When it is connected to a 114 volt circuit, a transformer is needed. If the primary coil of the transformer has 400 turns, how many turns must be in the secondary? Round your answer to a whole number.

Experimental Values: 200 800 100 1002 Table - Measured Values Input voltage Input Current Output Voltage Output current Vp [V] Ip [A] Vs [V] Is [A] 5.1 0.916 15 0.166

Please answer in typing format

A 20 kVA closet transformer located inside a building is used to step up the voltage for the building. It is connected to a primary 4800 V AC power source. The ratio of the number of primary windings to the number of secondary windings on the transformer is 20 to 40. show full detailed solution. What is the voltage provided to the building? What is the amount of current provided to the building?