Exam-style question
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What is the role of the inductor in an LC circuit at resonance?.
- A.To store energy in the form of electric field
- B.To store energy in the form of magnetic field
- C.To dissipate energy as heat
- D.To increase the circuit's resistance
Model answer
What a good answer should say
- To store energy in the form of magnetic field
Explanation
Why this works
In an LC circuit at resonance, the inductor stores energy in the form of a magnetic field. This energy oscillates between the inductor and the capacitor, allowing the circuit to maintain oscillations at the resonant frequency.
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