The ratio of secondary and primary turns of step-up transformer is 4 : 1.If a current of 4A is applied to the primary , the induced current in secondary will be

Turn ratio of a step-up transformer is 1 : 25. If current in load coil is 2A, then the current in primary coil will be :

The turns-ratio of a step up transformer is 1:10 and a current of 1.5 A is passed through the primary at 220 V. Obtain the values of voltage and the current in the secondary.

The number of turns in primary and secondary coils of a transformer is 50 and 200, respectively. If the current in the primary coil is 4 A, then current in the secondary coil is

The number of turns in primary and secondary coils of a transformer is 50 and 200 respectively .If the current in the primary coil is 4 A then the current in the secondary coil is

A transformer has 140 turns in the primary and 280 turns in the secondary. If current in primary is 4A, then the current in secondary will be …………