What is reactive power?

Reactive power is the energy that constantly flows back and forth between a power source and the reactive components of a circuit, such as inductors and capacitors. Because this energy is continually returned to the circuit rather than being dissipated as heat or used to do actual work, it is often referred to as 'wattless' or nonproductive power. Unlike real power, which is measured in watts and consumed by resistors, reactive power is measured in Volt-Amperes Reactive (VAR). While it doesn't perform useful work, it still requires the power source and conductors to handle the oscillating current, which is why managing it is important in power systems. The incorrect options suggest that power is actually 'consumed' in these components, but an ideal inductor or capacitor merely stores and releases energy without consuming any real power.