Table of Contents
What is the function of capacitor?
A capacitor is an electronic component that stores and releases electricity in a circuit. It also passes alternating current without passing direct current. A capacitor is an indispensible part of electronic equipment and is thus almost invariably used in an electronic circuit.
Which gas is present in Tubelight?
A fluorescent lamp tube is filled with a gas containing low pressure mercury vapor and argon, xenon, neon, or krypton. The pressure inside the lamp is around 0.3% of atmospheric pressure.
Which gas is used in fluorescent tube?
A fluorescent lamp consists of a glass tube filled with a mixture of argon and mercury vapour. Metal electrodes at each end are coated with an alkaline earth oxide that gives off electrons easily. When current flows through the gas between the electrodes, the gas is ionized and emits ultraviolet radiation.
What is the working principle of a tube light?
Working Principle of Tube Light. When the switch is ON, full voltage will come across the tube light through ballast and fluorescent lamp starter. No discharge happens initially i.e. no lumen output from the lamp. At that full voltage first the glow discharge is established in the starter.
What kind of light is a tube light?
A fluorescent lamp with a cylindrical tube is known as a tube light. Tubelight is a type of lamp that works on the dissolution of low-pressure mercury vapor, which converts ultraviolet rays into visible rays using a phosphor-coated inside a glass tube. The materials used mainly inside the tube light are as follows:
How does a light bulb in a fluorescent tube work?
This principle of the choke is exploited in lighting a fluorescent tube light. When an AC voltage is applied to a tube light fixture, the voltage passes through the choke, the starter, and the filaments of the tube. The filaments light up and instantly warm up the tube. The starter is made up of a discharbe bulb with two electrodes next to it.
What happens when you turn on a tube light?
When the switch is ON, full voltage will come across the tube light through ballast and fluorescent lamp starter. No discharge happens initially i.e. no lumen output from the lamp. At that full voltage first the glow discharge is established in the starter.