Electricity and Electrical Resistance

On a hot sunny day, you return home covered in sweat only to see that there is no electricity and hence no Air Conditioner. What would it feel like? Electricity has become a modern necessity for humans because it is a controllable and convenient form of energy. Ever wondered how does electricity flow in an electric current? Or what are the factors that control or regulate the current? Also, how does a switch control the flow of current? Let us seek the answers to these questions in this chapter!