Physics Formula
Capacitive Reactance Formula Formula
Calculates opposition to alternating current caused by a capacitor.
Formula Summary
Capacitive Reactance Formula
Calculates opposition to alternating current caused by a capacitor.
- Category
- Physics
- Equation
- Xc = 1 / (2πfC)
- Calculator
- Use Capacitive Reactance Formula Calculator →
Equation
Xc = 1 / (2πfC)
Variables
- Xc = capacitive reactance
- f = frequency
- C = capacitance
Units
- Reactance: ohms (Ω)
- Frequency: hertz (Hz)
- Capacitance: farads (F)
When To Use This Formula
Use this formula when calculating how much a capacitor opposes alternating current at a specific frequency.
Rearranged Equations
- f = 1 / (2πCXc)
- C = 1 / (2πfXc)
How to Use This Formula
- Identify the known values from the problem statement.
- Convert all values into compatible units.
- Substitute the values into the equation and calculate the result.
- Check that the final answer has the correct unit and meaning.