AC FUNDAMENTALS - PART - 04 RESISTANCE, INDUCTANCE AND CAPACITANCE IN A SINGLE PHASE AC CIRCUIT

INDUCTIVE CIRCUIT

In an inductive circuit the current lags behind the voltage by 90 degrees.

CAPACITIVE CIRCUIT

In a capacitive circuit the current leads the voltage by 90 degrees.

INDUCTIVE REACTANCE

When an alternating voltage is applied across an inductor, the induced emf produced opposes the flow of current through it. The opposition or resistance to the flow of current offered by the inductance is called inductive reactance.

It is denoted as Xl.

CAPACITIVE REACTANCE

Capacitive reactance is the ratio of the voltage applied to the capacitor and current through the capacitor. It is denoted as Xc.