Shingles is the reactivation of a viral infection in the nerves to the skin that causes pain, burning, or a tingling sensation, along with an itch and blisters in the skin supplied by the affected nerve. It is caused by the varicella zoster virus[1] , or VZVâthe same virus that causes chickenpox.
Types of electrical circuits. There are three main types of circuits encountered in a domestic situation. They are ring circuits, radial circuits and lighting circuits.
electric circuit - an electrical device that provides a path for electrical current to flow. circuit, electrical circuit. bridge circuit, bridge - a circuit consisting of two branches (4 arms arranged in a diamond configuration) across which a meter is connected. bridged-T - a circuit consisting of a T-network with an additional shunt bridging the two series circuits.