Final answer:
The induced electromotive force (emf) in each turn of both windings in a transformer is the same. This is due to Faraday's law of electromagnetic induction, which states that the induced emf in a coil is directly proportional to the rate of change of magnetic flux through it.
Step-by-step explanation:
The statement in your question is referring to the principle underlying the operation of a transformer, a device that transfers electrical energy from one circuit to another via electromagnetic induction.
When the turns of both windings are cut by the same flux in a transformer, the induced electromotive force (emf) in each turn of both windings is the same. This principle is based on Faraday's law of electromagnetic induction which states that the induced emf in a coil is directly proportional to the rate of change of magnetic flux through it.
The emf generated in each turn of a transformer is equal because the same magnetic flux links each turn of the winding. Whether the winding has many turns or few, each turn is cutting through the same magnetic field and thereby experiencing the same flux change.
Learn more about Electromagnetic Induction