The efficiency of a transformer is 98%. The primary voltage and current are`200 V` and `6A`. If the secondary voltage is `100 V`, the secondary current

A transformer has an efficiency of 80% and works at 100 volt and 4 kw. If the secondary voltage is 240 V. The current in secondary is

A transformer has an efficiency of 80%. It works at 4 kW, 100 V. If the secondary voltage is 240 V, Calculate the primary and secondary currents.

A transormer has an efficiency of 80%. It is connectes to a power input of 5 kW at 200 V. It the secondary voltage is 250 V, the primary and secondary currents are respectively

A step down transformer has turns ratio 40:1. (i) If the primary voltage is 240V, calculate the secondary voltage. (ii) If the secondary current is 4A, calculate the primary current.