Question

A transformer has 20 turn of primery and 100 turns of secondary if the two ends of the primary are connected to a 220 v d. c supply the voltage across the secondary will be what​

Answer 1

Answer:

If the primary is connected to a 220VDC supply, what will be the voltage across the secondary? Solution : Transformer works upon the priciple of induction which is only possible in case of AC. Hence when DC is supplied to it, the primary coil blocks the current supplied to it.