How do I calculate capacitor impedance?

This capacitor impedance calculator determines the reactance of an ideal capacitor for a given frequency of a sinusoidal signal. The angular frequency is also determined. Example: Calculate the impedance of a 10 pF capacitor at a frequency of 25 MHz. Enter the capacitance and frequency values, select the units and click or tap the Calculate button.

How to calculate capacitor impedance based on angular frequency?

By using this calculator, engineers and students can quickly determine the impedance of a capacitor based on its capacitance and the angular frequency of the AC signal. The formula used in the Capacitance Impedance Calculator is: Where: Z_C: Impedance of the capacitor (measured in ohms). j: Imaginary unit. ω: Angular frequency of the AC signal.

What is capacitor impedance?

The impedance of a capacitor is a measure of how much it resists the flow of alternating current (AC). Unlike resistors, capacitors’ impedance varies with frequency. This tool uses the capacitance value of your capacitor and the frequency of the signal to compute its impedance, which is crucial for various electronic applications. Inputs:

How do you calculate capacitance in a capacitive circuit?

However, they are not identical because of the phase shift between voltage and current in a capacitive circuit. The following formula is used for calculation: C is the capacitance in farads (F). To calculate, enter the capacitance and the frequency, select the units of measurements and the result will be shown in ohms.

How does frequency affect capacitor impedance?

The impedance of capacitors increases with decreasing frequency. The capacitance of the capacitor has the same effect on the impedance as the frequency. The higher the capacitance, the lower the impedance, and vice versa. This calculator is designed for ideal capacitors. Real capacitors always have some inductance and resistance.

How do you calculate the reactance of a capacitor?

The -j term accounts for the 90-degree phase shift between voltage and current that occurs in a purely capacitive circuit. The above equation gives you the reactance of a capacitor. To convert this to the impedance of a capacitor, simply use the formula Z = -jX.