When an iron-cored choking coil is connected to a 12 V dc supply, it draws a current of 2.5 A and when it is connected to a 230 V, 50 Hz supply, it draws a 2 A current and consumes 50 W of power. Dete

When an iron-cored choking coil is connected to a 12 V dc supply, it draws a current of 2.5 A

and when it is connected to a 230 V, 50 Hz supply, it draws a 2 A current and consumes 50 W of

power. Determine for this value of current (i) power loss in the iron core, (ii) inductance of the

coil, (iii) power factor, and (iv) value of the series resistance which is equivalent to the effect of iron loss