Capacitors have a special way of opposing alternating current (AC) which is called capacitive reactance. This is like an internal resistance in the capacitor which changes based on the frequency of the electricity flowing through it. Unlike normal resistance which stays the same, no matter how fast the electricity changes (frequency), capacitive reactance is affected […]
Capacitive
Understanding Capacitive Voltage Divider Circuits with Formulas
Capacitive voltage dividers are circuits, which employ capacitors in series with an alternating current (AC) power supply to produce a voltage drop across each capacitor. The most common use for these circuits is, to safely decrease extremely high voltages for measurements or protection. High frequency capacitive voltage dividers are increasingly being used in touchscreens and […]
Calculating Capacitance and Capacitive Reactance
A capacitor is a device that can store electric charge on its conductive plates. The amount of charge (Q) that a capacitor can store depends on the voltage difference between its plates. When a capacitor is connected to an alternating current (AC) circuit, its capacitance affects how well it can store and release charge as […]