An electrical relay is a switch that operates automatically with the help of control signals. To Know more about relays read this article.

This article is all about Communication Technology: Computer Networks. One will get to know about networking, it's components and it's types

The article helps understand the working of Tilt sensor.It gives the information about how to build a circuit using Tilt sensor and Arduino

Switch, something that we say so often in our daily lives; something that allows us control devices and appliances and we can't even...