A step-up transformer works on 220V and gives 2 A to an external resistor. The ratio of the number of turns between the primary and secondary coils is 2:25. Assuming 100% efficiency, find the secondary voltage, primary current and power delivered.
We have EP=220 V And IS=2A
Given NS:NP=25:2
From formula ESEP=NSNP=IPIS
ES220=252=IP2
Hence ES=2750V
IP=25A
Power = ESIS
=2750× 2
=5500W