TPC Reading Blueprints Practice Test

Question: 1 / 400

What is the term for the metal inside the windings of a transformer?

Insulator

Core

The term for the metal inside the windings of a transformer refers specifically to the part that enhances the magnetic coupling between the primary and secondary coils. This metal is typically made of iron or other ferromagnetic materials, and its primary function is to provide a low reluctance path for the magnetic flux. By concentrating and directing the magnetic field produced by the current flowing through the windings, the core significantly increases the efficiency of the transformer.

Without the core, the magnetic field would largely dissipate in the air, leading to a substantial loss in energy transfer between the coils. The core also serves to minimize losses due to stray magnetic fields. Thus, understanding the role of the core is crucial for grasping how transformers operate and function effectively in electrical systems.

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