Question:
A resistor \( R \), an inductor \( L \), and a capacitor \( C \) are connected in series to an oscillator of frequency \( n \). If the resonant frequency is \( n_r \), then the current lags behind voltage when
A resistor \( R \), an inductor \( L \), and a capacitor \( C \) are connected in series to an oscillator of frequency \( n \). If the resonant frequency is \( n_r \), then the current lags behind voltage when
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In an LC circuit, current lags behind voltage when the circuit is inductive (\( n<n_r \)).
Updated On: Jan 6, 2026
- \( n = 0 \)
- \( n<n_r \)
- \( n = n_r \)
- \( n>n_r \)
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The Correct Option is B
Solution and Explanation
At resonance, the impedance of the circuit is minimized, and the voltage and current are in phase. When \( n<n_r \), the circuit behaves inductively, and the current lags behind the voltage.
Step 2: Conclusion.
The current lags behind the voltage when \( n<n_r \), corresponding to option (b).
Step 2: Conclusion.
The current lags behind the voltage when \( n<n_r \), corresponding to option (b).
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