Question

Complete the diagram of the transformer and connections by labelling all parts joined by you.

Answer 1

A transformer consists of three basic parts. These are an iron core which provides a circuit of low reluctance for magnetic lines of force, a primary winding which receives the electrical energy from the source of applied voltage, and a secondary winding which receives electrical energy by induction from the primary coil. The primary and secondary of this closed core transformer are wound on a closed core to obtain maximum inductive effect between the two coils.
In the figure, the primary coil and secondary coil are to be added. The complete diagram is given below.
On a step-down transformer there are more turns on the primary coil than the secondary coil. The induced voltage across the primary coil is greater than the applied voltage across the secondary coil or in other words the voltage has been stepped-down".
In the figure given, the input voltage is 220V and the output voltage is 44V. The voltage across the primary coil is greater than the secondary coil. Hence, it is a step-down transformer.