Control transformers generally have two identical primary wi

Solution

A transformer is one of the electrical device, it transfers electrical energy between the different circuits through electromagnetic induction. To increase or decrease the alternating voltages the transformers used.

A changing the current in the transformer\'s primary winding creates a varying magnetic flux in the transformer core and a varying field impinging on the transformer\'s secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding due to electromagnetic induction