What does resonance in electronic circuits signify?

Resonance in electronic circuits signifies a condition where the circuit responds with maximum energy transfer or delivery at a specific frequency, known as the resonant frequency. At this particular frequency, the inductive and capacitive reactances in the circuit effectively cancel each other out, resulting in a minimum impedance. This produces a peak in the circuit's response, allowing for more efficient energy transfer. It is a key principle used in applications such as tuners and filters, where the goal is to select or amplify a single frequency while minimizing the impact of others.

Understanding resonance helps technicians design circuits that can effectively harness energy at specific frequencies, making it a fundamental concept in electronics.