Capacitive reactance is measured in which unit and represented by which symbol?

Capacitive reactance is a measure of the opposition that a capacitor presents to alternating current (AC), and it is specifically quantified in ohms. This unit is consistent with how we measure any form of resistance or reactance in electrical circuits. The formula for calculating capacitive reactance is given by Xc = 1/(2πfC), where f is the frequency of the AC and C is the capacitance.

The symbol used to represent capacitive reactance is Xc. This allows for clear differentiation between resistive opposition (measured in ohms and often denoted as R) and reactive opposition, such as that from capacitors and inductors. Understanding these symbols and units is essential for working with AC circuits, where reactance plays a significant role in determining the behavior of the circuit under various conditions.

Other options, such as henries for inductance, volts for electrical potential, and amperes for current, do not relate to capacitive reactance. Each of these units pertains to distinct aspects of electrical phenomena, highlighting the importance of accurate measurements and terminology in electrical engineering.