Design of a transformer for producing separate secondary voltages from A.C main input.

The primary coil of a transformer has 800 turns and the secondary coil has 8 turns. I connected to a 220 V as supply. What will be the output voltage?

A radio set operates at 6 V DC . A transformer with 18 turns in the secondary coil is used to step down the input 220 V AC emf to 6 V AC emf . This AC emf is then rectified by another circuit to give 6 V DC which is fed to the radio. Find the number of turns in the primary.

An a.c voltage of 300V applied to the primary of a transformer & voltage of 3000V is obtained from the secondary coil. Calculate the ratio of circuit in the primary & secondary coils.

Is energy produced when a transformer steps up the voltage?

Transformers either increase or decrease AC voltage. A. State the principle of a transformer. B. Explain with the help of a labelled diagram the working of a transformer C. Explain briefly any three energy losses in a transformer.