A parallel LC circuit is in resonance when a current detected through the parallel circuit falls in phase with the supply voltage, according to Electronic-Tutorials. At the point of resonance, a large circulating current... More » Science Physics Electricity

The RC time constant is the product of the resistance and capacitance of a circuit, or R x C. It is used to describe the rate of charging when a battery is connected to a resistor and capacitor in series. RC circuits can... More » Science Physics Electricity

A light bulb circuit works when the electric current flowing through the light bulb combines with the current flowing in the battery or power source. The filament and wires in the light bulb conduct electricity so that e... More » Science Physics Electricity
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Live wires carry electric current toward a device, such as a main-powered appliance, while neutral wires carry electric current away from the device to close an electric circuit. Live wires are typically blue in color, w... More » Science Physics Electricity

A transformer changes the voltage of an electric current while transferring it from one circuit to another through electromagnetic induction. Fluctuating magnetic fields in the transformer generate an electric current in... More » Science Physics Electricity

Series and parallel resonance are two distinct circuit structures. In a parallel circuit, there is infinite resistance to an alternating current. In a series circuit, there is zero resistance to an alternating current, b... More » Science Physics Electricity

An electric light bulb works by conducting an electric current through its wires and the filament once it gets connected to a power supply. As the current flows through the components of an electric bulb, it generates li... More » Science Physics Electricity