Question

A power line feeds input power at 230v to a step down transformer with its primary winding having 400 turns .? What should be thenu.Comber of turns in the secondary in order to get output power at 230v ? If power effeciency is .7 & secondary current of 5ampere find secondary current

Answer 1

Explanation:

The input voltage to the transformer is 230V

The number of turns in primary windings is 400 turns

The output voltage of the transformer is 230 V

To find: The number of turns in the secondary coil.

The number of turns in the secondary coil is given by:

edit you can use input power 230 V

then you can get 400 turn

sorry for mistake

hope it help u