Conceptual: Reasonant Frequency

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SUMMARY

The resonant frequency of an LRC series circuit is determined by the formula f = 1 / (2π√(LC)), where L is inductance and C is capacitance. When both inductance and capacitance double, the new resonant frequency becomes f' = 1 / (2π√(4LC)), which simplifies to f' = 1 / (2√2 * 2π√(LC)). This results in the resonant frequency decreasing to 1/2 its original value.

PREREQUISITES
  • Understanding of LRC series circuits
  • Familiarity with resonant frequency calculations
  • Knowledge of inductance and capacitance concepts
  • Basic algebra for manipulating equations
NEXT STEPS
  • Study the derivation of the resonant frequency formula for LRC circuits
  • Explore the effects of varying inductance and capacitance on circuit behavior
  • Learn about the implications of resonant frequency in practical applications
  • Investigate the role of damping in LRC circuits
USEFUL FOR

Students studying electrical engineering, educators teaching circuit theory, and hobbyists working with LRC circuits will benefit from this discussion.

BuBbLeS01
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Homework Statement


If the inductance and the capacitance both double in an LRC series circuit, the resonant frequency of the circuit will...
decrease to 1/4 its original value
decrease to 1/2 its original value
decrease to 1/8 its original value

Homework Equations





The Attempt at a Solution


I don't understand how to figure this out...
 
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Hi BuBbLeS01,

What is the formula for resonant frequency? That should guide you as to what happens when L and C change.
 

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