It is true that eating a diet rich in fresh fruits and vegetables, whole grains and lean meat are good ideas. But this isn't new information. This is what doctors and health experts have been recommending for years. The clean eating diet goes further encouraging the use of only organic products.
The circuit is called 'closed' when the current flows in the circuit, and when the current does not flow, it is called an 'open circuit'. The switch or key helps to make or break the circuit, i.e. switches on or switches off the current. Sub Topics. 1  Components of An Electric Circuit.  Series and Parallel Circuits.
In the labs we did in class we usually used a battery as a power source, a piece of copper wire as a conducting path and a light bulb as a load. To make a more complicated circuits, like the one in your home, you must use a switch. A switch allows you to control the flow of current in an electrical circuit. These allow you to control the power in your home. Think of a light switch.