Resonant Frequency of Passive Filter Formula

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Resonant Frequency is the natural frequency at which a system tends to vibrate at the highest amplitude. Check FAQs
fr=12πLC
fr - Resonant Frequency?L - Inductance?C - Capacitance?π - Archimedes' constant?

Resonant Frequency of Passive Filter Example

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With units
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Here is how the Resonant Frequency of Passive Filter equation looks like with Values.

Here is how the Resonant Frequency of Passive Filter equation looks like with Units.

Here is how the Resonant Frequency of Passive Filter equation looks like.

0.0025Edit=123.141650Edit80Edit
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Resonant Frequency of Passive Filter Solution

Follow our step by step solution on how to calculate Resonant Frequency of Passive Filter?

FIRST Step Consider the formula
fr=12πLC
Next Step Substitute values of Variables
fr=12π50H80F
Next Step Substitute values of Constants
fr=123.141650H80F
Next Step Prepare to Evaluate
fr=123.14165080
Next Step Evaluate
fr=0.00251646060522435Hz
LAST Step Rounding Answer
fr=0.0025Hz

Resonant Frequency of Passive Filter Formula Elements

Variables
Constants
Functions
Resonant Frequency
Resonant Frequency is the natural frequency at which a system tends to vibrate at the highest amplitude.
Symbol: fr
Measurement: FrequencyUnit: Hz
Note: Value should be greater than 0.
Inductance
Inductance is the property of an electrical conductor to oppose a change in the electric current flowing through it.
Symbol: L
Measurement: InductanceUnit: H
Note: Value should be greater than 0.
Capacitance
Capacitance is the ability of a material object or device to store electric charge.
Symbol: C
Measurement: CapacitanceUnit: F
Note: Value should be greater than 0.
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other formulas in Power Filters category

​Go Corner Frequency in Bandpass Filter for Series RLC Circuit
fc=(R2L)+((R2L)2+1LC)
​Go Cut-off Frequency in Bandpass Filter for Parallel RLC Circuit
ωc=(12RC)+((12RC)2+1LC)
​Go Keying Parameter of Parallel RLC Bandpass Filter
kp'=(L+Lo)ωc2Vdc
​Go Keying Index of Parallel RLC Bandpass Filter
ki'=ωckp'

How to Evaluate Resonant Frequency of Passive Filter?

Resonant Frequency of Passive Filter evaluator uses Resonant Frequency = 1/(2*pi*sqrt(Inductance*Capacitance)) to evaluate the Resonant Frequency, The Resonant Frequency of Passive Filter formula is defined as is the natural frequency at which a system tends to vibrate at the highest amplitude. It is the frequency at which the system's stored energy is transferred back and forth between its potential and kinetic forms most efficiently. Resonant Frequency is denoted by fr symbol.

How to evaluate Resonant Frequency of Passive Filter using this online evaluator? To use this online evaluator for Resonant Frequency of Passive Filter, enter Inductance (L) & Capacitance (C) and hit the calculate button.

FAQs on Resonant Frequency of Passive Filter

What is the formula to find Resonant Frequency of Passive Filter?
The formula of Resonant Frequency of Passive Filter is expressed as Resonant Frequency = 1/(2*pi*sqrt(Inductance*Capacitance)). Here is an example- 0.002516 = 1/(2*pi*sqrt(50*80)).
How to calculate Resonant Frequency of Passive Filter?
With Inductance (L) & Capacitance (C) we can find Resonant Frequency of Passive Filter using the formula - Resonant Frequency = 1/(2*pi*sqrt(Inductance*Capacitance)). This formula also uses Archimedes' constant and Square Root (sqrt) function(s).
Can the Resonant Frequency of Passive Filter be negative?
No, the Resonant Frequency of Passive Filter, measured in Frequency cannot be negative.
Which unit is used to measure Resonant Frequency of Passive Filter?
Resonant Frequency of Passive Filter is usually measured using the Hertz[Hz] for Frequency. Petahertz[Hz], Terahertz[Hz], Gigahertz[Hz] are the few other units in which Resonant Frequency of Passive Filter can be measured.
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