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 basicly three types of basic electronic circuits a Series Circuit, Parallel Circuit, and Series Parallel Circuit this is a combination of both series and parallel circuits.
Various electronic components. An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. 1  Transistors. 2  Bipolar junction transistor (BJT, or simply transistor) â NPN or PNP. 3  Photo transistor â Amplified photodetector.