Resonant Frequency Lc
LC circuit resonant angular frequency is:
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More electromagnetic induction and ac Practice Questions
Magnitude of impedance Z of series RLC at angular frequency ω is:
Magnitude of impedance Z of series RLC at angular frequency ω is:
High Q factor in resonant circuit implies:
High Q factor in resonant circuit implies:
At resonance in series RLC circuit current is maximum because:
At resonance in series RLC circuit current is maximum because:
Instantaneous AC voltage form V = V0 sin(ω t) has rms value:
Instantaneous AC voltage form V = V0 sin(ω t) has rms value:
Eddy currents are induced circulating currents leading to:
Eddy currents are induced circulating currents leading to:
Ideal transformer voltage ratio equals turns ratio V2/V1 =:
Ideal transformer voltage ratio equals turns ratio V2/V1 =:
Induced EMF in inductor L with changing current di/dt is:
Induced EMF in inductor L with changing current di/dt is:
Lenz's law ensures induced current direction opposes:
Lenz's law ensures induced current direction opposes:
Inductive reactance X_L in AC of angular frequency ω is:
Inductive reactance X_L in AC of angular frequency ω is:
Average power in AC circuit with Vrms, Irms and phase angle φ is:
Average power in AC circuit with Vrms, Irms and phase angle φ is:
At high frequencies current tends to concentrate:
At high frequencies current tends to concentrate:
Rod length ℓ moving perpendicular to B with speed v. Induced EMF is:
Rod length ℓ moving perpendicular to B with speed v. Induced EMF is:
About This Question
- Subject
- physics
- Chapter
- electromagnetic induction and ac
- Topic
- resonant frequency lc
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
1/√(LC)
Resonance in an LC circuit occurs when the magnitudes of inductive reactance and capacitive reactance are equal: XL=XC⟹ωL=ωC1 ω2=LC1⟹ω0=LC1 At this frequency, energy oscillates freely between the electric field of the capacitor and the magnetic field of the inductor.
This easy difficulty physics question is from the chapter electromagnetic induction and ac, covering the topic of resonant frequency lc. It appeared in the 2025 exam.
Looking for more practice? Explore all physics questions or browse electromagnetic induction and ac questions on RankGuru.