# Resonance in RLC circuit

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What is the impedance of a series RLC circuit at resonance? What is the current in the circuit at resonance?

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#### Solution Preview

Please see the attached file.

SOLUTION

In a series LRC circuit :

i) Current I = (Vpeak/Z) sin(Ï‰t+Ï†) = Ipeak sin(Ï‰t+Ï†) .......(1)

where :

Vpeak = Peak value of voltage,

Z = Impedance of the circuit,

Ï† = Phase angle which is negative for an inductive circuit and positive for a ...

#### Solution Summary

Impedance and current in an RLC circuit at resonance has been explained.

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