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.
The Num Lock key is included on some computer keyboards to change the functionality of the number keys, enabling more functions and shortcuts to be built into the keyboard. In the same way that Caps Lock turns all letters into capitals, Num Lock switches on or off the secondary function of the number pad keys.