A cell is a very small battery. A good example is the type found in most modern watches. This type of battery is often used in camcorders as backup batteries. They ensure that the date and time are held in memory even when the rechargeable batteries are removed. Button batteries are usually rated at 1.5 volts or 3 volts and consequently they are used in devices that need very little power. Watches are ideal for this type of battery as well as low power calculators and hearing aids. Large button batteries are used as backup batteries for the CMOS of computer systems and ensure that the basic settings in the setup of the computer are held in memory, even when the computer is switched off.
This is how it looks
Same Circuit Using a CELL
Now in this circuit only when the circuit is closed the LED will Glow.
July 10, 2009
Electronics is the study and use of electrical that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves. and semiconductors. The pure study of such devices is considered as a branch of physics, while the design and construction electronic circuits to solve practical problems is called electronic engineering.
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Purpose This circuit can be used to escape from the nuisance of mobile phone rings when you are at home. This circuit will give a visual...