What is Structure of Atom?
What is Electrons & Electricity?
The electron is a subatomic particle carrying a negative electric charge. It has no known components or substructure. Therefore, the electron is generally believed to be an elementary particle. An electron has a mass that is approximately 1/1836 that of the proton
What are Conductors & Insulators?
What is Current ?
The rate of flow of electricity is referred to as current. As the rate of flow of electrons increases, so the current increases.
What Is Resistance?
What is Ohms Law?
Ohms law states that the current through a conductor between two points is directly proportional to the potential difference or voltage across the two points, and inversely proportional to the resistance between them.Its probably easiest to understand when represented mathematically: Ohms: volts / amp
What is Power?
Why Use Watts?
Why are they called Watts?
They are named after the famous Scottish engineer and inventor of the steam engine, James Watt.
What is DC?
Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also be through semiconductors, insulators, or even through a vacuum as in electron or ion beams.
What is AC?
In alternating current (AC, also ac) the movement of electric charge periodically reverses direction .
What is Hertz ?
The study of frequency owes much to a German physicist called Heinrich Hertz. The unit of frequency was named after him: one cycle per second = 1 Hertz (abbreviated to Hz).
What is Flicker?
What is Transformer?
What is Ballasts?
Conventional ballasts are large coils of copper wire wrapped around a heavy iron core and work as current limiting devices. Discharge lamps are unable to correctly control the amount of current they need so a ballast is used to limit the amount of current being supplied to the lamp. This limitation of the current is known as choking, hence the alternative name choke. Ballasts are used with other devices to control the operation of discharge lamps. Collectively these devices are called the control gear
What is Control gear?
An electrical ballast (sometimes called control gear) is a device intended to limit the amount of current in an electric circuit.
What is starter?
A switching device that provides the initial high voltage needed to start the fluorescent tube (sometimes referred to as energizing the lamp). Once the lamp has lit the starter has no further part to play.
What is capacitor?