define capacitative reactance. write its s.i. units.
Define capacitive reactance and its SI units
Capacitive Reactance Definition:
Capacitive reactance is the opposition offered by a capacitor to the flow of an alternating current (AC). It is a measure of how the capacitor impedes the flow of the alternating current when voltage is applied, similar to the concept of resistance in a DC circuit. Capacitive reactance is frequency-dependent; its value decreases as the frequency of the AC signal increases.
SI Units of Capacitive Reactance:
The SI unit of capacitive reactance is the ohm (Ω). In electrical circuits, ohms represent the resistance to the flow of current. Capacitive reactance is also expressed in ohms to indicate the opposition to the current flow caused by the capacitor in an AC circuit. The formula to calculate capacitive reactance is given by Xc = 1 / (2 * π * f * C), where Xc is the capacitive reactance, f is the frequency of the AC signal in hertz, and C is the capacitance of the capacitor in farads. The resulting unit of capacitive reactance, calculated using this formula, is ohms (Ω).