Amateur Extra › E5 Electrical Principles › E5A06
E5A06
What is the magnitude of the circulating current within the components of a parallel LC circuit at resonance?
Pick an answer to check it.
Answer: B. It is at a maximum
In a parallel LC circuit at resonance, energy sloshes back and forth between the inductor and capacitor. The circulating current inside the tank is at its maximum, even though the input current is small.
Tip: Tank current circulates at maximum.