Question

what is transformer? what is transformation ratio ?

Answer 1

The ratio of the transformers primary and secondary windings with respect to each other produces either a step-up voltage transformer or a step-down voltage transformer with the ratio between the number of primary turns to the number of secondary turns being called the “turns ratio” or “transformer ratio”.

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Answer 2

A transformer is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction