What is the frequency and capacitance?

Solve? In a series electrical circuit containing inductance L and capacitance C the resonant frequency is...?

  • Solve? In a series electrical circuit containing inductance L and capacitance C the resonant frequency is given by fr = 1/2π√ (LC) Hz If the values of L and C used in the calculations are 2.6% too large and 0.8% too small respectively, determine the approximate percentage error in frequency.

  • Answer:

    This is simple arithmetic. In the first case replace L and C with 1.026 times L and C, and in the second case replace them with .992 L and C.

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Other answers

When the tuning dial of a receiver is shifted it actually moves the plates of the tuning capacitor and so changes the frequency of resonance. On some receivers the inductance is altered. fo = resonant frequency. equals 1 divided by 2Pi x square root LC.

Len

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