what is the use of choke in tubelights and its functioning?

Answer 1

I assume you mean the ballast coil. In many lights, it provides a jolt of high voltage to get the current started in the tube. But if the tube were connected to the power line without the ballast coil in place, it would be almost a short circuit. The current has to be limited, and the choke coil does that. It introduces reactive impedance, at the frequency of the alternating current supply it behaves as a resistance in order to limit the current.

Answer 2

In general terms, a fluroscent tube required high voltage{about 600V} to start up glowing, only for starting, there after it will hold up with lower voltage. To provide this high starting voltage we use a choke and starter combined, when you switch on the light, starter will make intermitend 'make and break' contacts and this will lead the choke to provide a high voltage across the tube for only a fraction of a second, this high voltage will break the contuction barrior of NEON gas inside the tube, I hope you know that current flow is nothing but electron flow, these electrons while moving from one end of the tube to other hit on the fluroscent cotted walls of the tube and this will lead to photonic emission, and photonic emission is nothing but light. The color of the light can be varied according to the type of fluroscent we use.

Answer 3

The choke is to create high amp and through the tube, so the fluorescent dust will glow.

Answer 4

shakes electricity into tubelight.

Answer 5

lagta hai ab tubelight jala,,