Transformer

List the uses of a transformer.

Write a short note on transformers.

What is a radiator which is used in the construction of a transformer?

Define power transmission.

The turn ratio of a transformer determines the type of it.

What does turn ratio of a transformer indicates?

A step-down transformer has $50$ turns on secondary and $1000$ turns on primary winding. If a transformer is connected to $220 \mathrm{V},1 \mathrm{A}$ A.C. source, what is output current of the transformer?
 

A $100\%$ efficient transformer has $100$ turns in the primary and $25$ turns in its secondary coil. If the current in the secondary coil is $4 \mathrm{A}$, then the current in the primary coil is, 

A step-down transformer is connected to $2400 \mathrm{V}$ line and $80 \mathrm{A}$ of current is found to flow in output load. The ratio of the turns in primary and secondary coil is $20:1$. If transformer efficiency is $100\%,$ then the current flowing in primary coil will be,

A generator supplies $100 \mathrm{V}$ to a transformer's primary coil, which has $100$ turns. If the secondary coil has $500$ turns, what is the secondary voltage?

A $60 W$ load is connected to the secondary of a transformer whose primary draws line voltage. If a current of $0.54 A$ flows in the load, what is the current in the primary coil? Comment on the type of transformer being used.

A generator supplies $100 \mathrm{V}$ to a transformer's primary coil, which has $100$ turns. If the secondary coil has $500$ turns, what is the secondary voltage?

A $60 W$ load is connected to the secondary of a transformer whose primary draws line voltage. If a current of $0.54 A$ flows in the load, what is the current in the primary coil? Comment on the type of transformer being used.