The transformer core is typically composed of what material?

The transformer core is typically made of iron due to its excellent magnetic properties. Iron's permeability allows it to efficiently channel magnetic flux and minimize energy losses during the process of electromagnetic induction. This is essential for transformers, as they rely on the transfer of energy through magnetic fields.

While materials like copper and aluminum are excellent conductors of electricity and are often used for winding wires, they do not possess the necessary magnetic characteristics needed for the core. Plastic, on the other hand, is an insulator and does not conduct electricity or create magnetic flux, making it unsuitable for transformer cores. Therefore, iron is the optimal choice for ensuring the efficiency and functionality of a transformer.