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.
Series Circuit. One type of circuit is called a series circuit. A series circuit is when the electrical current has only one path in which it can travel. If there is a break in the path, nothing in the series will work. In addition, each time a device is added to the series, the amount of power becomes less to each device.