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What is parallel resonance circuit

PARALLEL RESONANCE CIRCUIT

 Parallel resonance circuit


Inductor, Capacitor, and Resistor connected are parallel line its called parallel resonance circuit.

RESONANCE FREQUENCY OF PARALLEL RESONANCE CIRCUIT

Fr=1/2√L.C 

POWER FACTOR 

Power factor is unity of parallel resonance circuit.

IMPORTANT TOPIC OF PARALLEL RESONANCE CIRCUIT
  • Parallel resonance circuit have maximum impedance. 
  • Parallel resonance circuit have minimum current.
  • The circuit types is capacitive after resonance frequency.
  • The circuit types is inductive before of resonance frequency.
  • IC=IL at resonance frequency.
  • The circuit types is resistive at resonance frequency.
  • Power factor is leading after resonance frequency.
  • Power factor is unity at resonance frequency.
  • Power factor is lagging before resonance frequency.
  • Net total resistive current is zero.
  • Voltage and current in phase.
  • The amount of circuit current ot depend on the impedance.

QUALITY FACTOR IS PARALLEL RESONANCE CIRCUIT

            Q=IC or IL/I

NOTE

IC>IL = P.F lead

IC<IL = P.F lagging

IL=IC =P.F unity

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