What characterizes an ideal transformer?

An ideal transformer is characterized by having no energy losses during the conversion of electrical energy from the primary winding to the secondary winding, making the functionality solely reliant on electromagnetic induction. The correct understanding of the concept can be encapsulated by emphasizing that an ideal transformer perfectly links the magnetic field created by the primary winding to the secondary winding, allowing for efficient induction across every turn in the secondary coil. This perfect inductive coupling ensures that the maximum possible voltage is induced in the secondary winding relative to the primary winding, maintaining energy conservation.

The other aspects mentioned do not apply to an ideal transformer. For instance, an ideal transformer does not generate more heat, as all energy is transmitted without losses, which would otherwise produce heat. Additionally, the performance of the ideal transformer is characterized by its operation at a specific capacity rather than lower capacities, as the ideal condition reflects perfect operation without the constraints imposed by real-world limitations.