When a voltage is induced in one circuit without direct contact with another energized circuit, it is known as what?

The phenomenon described in the question refers to inductive coupling, which is the principle behind how an inductive circuit operates. In this type of circuit, a changing magnetic field created by an alternating current in one coil induces a voltage in another nearby coil without any physical connection. This is fundamental in various applications, such as transformers and inductors, where electrical energy is transferred from one circuit to another through magnetic fields.

Inductive circuits rely specifically on this principle of electromagnetic induction, which is characterized by its ability to transfer power or signals wirelessly between conductors. This distinguishes inductive circuits from resistive or capacitive circuits, which operate based on different principles. A resistive circuit primarily involves the flow of current which dissipates energy as heat, while a capacitive circuit stores energy in an electric field and releases it later.

An RLC circuit combines resistive, inductive, and capacitive components, but the scenario presented specifically outlines the characteristics of inductive interactions.