Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / bhadrappahr
Fluorescent tube is a gas discharge lamp. It consists of two
filamentary thermionic electrodes mounted at each end of
long cylindrical glass tube. The tube is filled with an
inert gas like mercury at low pressure and sealed. A high
voltage is necessary to start conduction through the tube.
To obtain this high voltage during starting an iron cored
choke and glow type starter are connected in series with
filaments. When the supply is switched ON an arc is struck
between the starter electrodes which causes a current to
flow through the choke and filaments. The filaments get
heated up and emit electrons. After a few seconds the
starter electrodes separates and due to this separation
current is interrupted. This interruption causes high
voltage to be induced in the choke which appears across the
filaments of the tube resulting in discharge through the
tube. The gas inside the tube is ionized and the ionized gas
emits ultra-violet radiation which is absorbed by the
fluorescent material coated inside of the tube this in turn
emits light radiations causing the tube to glow.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
what the Microsoft .NET framework is?
What is acsr cable and where we use it?
Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?
What is the size of a 60 watt and 80 watt tubelight?
The simple way of finding the leakage quantity and % in compressed air distribution system
why we have and use 3 phase not 2 or 4 or other in power system?
magnetizer priciple
The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.
How to calculate multiplication factor in kva example 500kva ans pls ?
how many types control panel of a 132/33 kv substation
What are the parts in a inverter?
Define piezo-electric effect?
what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?
what are the applications of PLC?
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
