A step-up transformer works on `220 V` and gives `2 A` to an external resistor. The turn ratio between the primary and secondary coils is 2 : 25. Assuming 100% efficiency, find the secondary voltage, primary current and power delivered respectively

A step-up transformer operates on a 200 volt line and supplies a load of 2 ampere. The ratio of primary and secondary windings is 1:5. Determine the secondary voltge, primary current and power output. Assume efficiency to be 100%.

A step-up transfomer operates on a 220 volt line and supplies to load, a current of 2A. The ratio of primary and secondary winding is 1 : 25. Calculate secondary voltage, primary current and power output, if efficiency is 80%

A transformer with efficiency 80%works at 4 kW and 100 V.if the secondary voltage is 200V,then the primary and secondary currents are respectively

The primary of a transformer with primary to secondary turns ratio of 1 : 2, is connected to an alternator of voltage 200 V. A current of 4A is flowing though the primary coil. Assuming that the transformer has no losses, find the secondary voltage and current are respectively.