Calculate the RC cutoff frequency
Calculation of the cut-off frequency of a capacitor-resistor circuit
This function can be used to calculate the cutoff frequency of a capacitor and a resistor, or the capacitance or resistance at a given frequency. Two of the values must be known in order to calculate the third.
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Formulas for calculating the cutoff frequency
The frequency is calculated according to the following formula. The resistance \(\displaystyle R \) and the capacity \(\displaystyle C \) must be known.
\(\displaystyle f=\frac{1}{2 ·\ π · R · C }\)
Formula for calculating the resistance
The resistance can be calculated using the following formula. The frequency \(\displaystyle f \) and the capacity \(\displaystyle C \) must be known.
\(\displaystyle R=\frac{1}{2 ·\ π · f · C }\)
Formula for calculating the capacity
The capacity is calculated according to the following formula. The frequency \(\displaystyle f \) and the resistance \(\displaystyle R \) must be known.
\(\displaystyle C=\frac{1}{2 ·\ π · f · R }\)
Related functions:
Calculate RC series connection, calculates the voltages, powers, current and reactance at a given frequency at a given frequency.
RC low pass calculation calculates the output voltage, attenuation and phase rotation for the given frequency
RC high pass calculate calculates the output voltage, attenuation and phase shift for the given frequency
Capacitor functions
Series connection with capacitorsSeries connection with 2 capacitors
Reactance Xc of a capacitor
Time constant of an R/C circuit
Capacitor charging voltage
Capacitor discharge voltage
R/C for the charging voltage
Series circuit R/C
Parallel circuit R/C
Low pass-filter R/C
High pass-filter R/C
Integrator R/C
Differentiator R/C
Cutoff-frequency R,C
R and C for a given impedance
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