Resonance in Series LRC Circuits Video Lessons

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Problem: A series RLC circuit with L = 25 mH, C = 0.8 μF and R = 7Ω is driven by a generator with a maximum emf of 12V and a variable angular frequency ω. At resonance, the currenta) leads the generator voltage by 90°.b) lags the generator voltage by 90°.c) is in phase with the generator voltage.

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Problem Details

A series RLC circuit with L = 25 mH, C = 0.8 μF and R = 7Ω is driven by a generator with a maximum emf of 12V and a variable angular frequency ω. At resonance, the current

a) leads the generator voltage by 90°.

b) lags the generator voltage by 90°.

c) is in phase with the generator voltage.

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