Exam-style question
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Which of the following describes the effect of resonance in an LC circuit?.
- A.Increased impedance at resonance
- B.Decreased current at resonance
- C.Maximum current at resonance
- D.No effect on the circuit
Model answer
What a good answer should say
- Maximum current at resonance
Explanation
Why this works
At resonance, the LC circuit allows maximum current to flow due to the cancellation of reactances. This results in a peak in the current response at the resonant frequency, enhancing the circuit's performance.
Common mistake
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