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Question
what is the use of choke on tube light fitting
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
At the time of starting a tube choke gives rise to high
voltage by di/dt nearly 1000 volts by starter ON-OFF
function rate of change of voltage becomes high due to
inductance of choke. This high voltage starts ionization of
gas in the tube. Once gas gets ionised and starts
conducting then starter gets out of circuit and circuit is
completed only through choke which now share voltage(limit
voltage) for tube because after esabilishing ionization now
to maintain it only nearly half of the voltage is required.
 
Is This Answer Correct ?    245 Yes 20 No
Dileep
 
Answer
# 2
The function of choke is to provide high voltage enough for
ionization to take place in a tube light and after
establishment and substenance of ionization, limit the
voltage across the tube. That is the reason why a tube
fuses when the choke is shorted.
 
Is This Answer Correct ?    217 Yes 34 No
Manish Tailor
 
 
 
Answer
# 3
To start the tubelight. we have to ionise the gas inside
tubelight like murcury which ionise at high voltage around
1000 to 1500 V it is provided by choke.
 
Is This Answer Correct ?    53 Yes 24 No
Nimish
 
Answer
# 4
It is used to provide high voltage approximately 1000 to
1500 Volt.
 
Is This Answer Correct ?    42 Yes 18 No
Suchak Nimish
 
Answer
# 5
the property of the inductor is to oppose the rate of
change of current through it suddenly. At the time of
starting it requires high voltage to ionise the gas (
through creating potential difference between the
electrodes) in the tube so choke creates required potential.
The starter is same as that of a capacitor, to improve the
power factor the total system(connection of R and L) it is
required.
 
Is This Answer Correct ?    30 Yes 8 No
Rathnam
 
Answer
# 6
The choke acts a regulator and controls the current flow
thro' the flourescent tube.
 
Is This Answer Correct ?    88 Yes 73 No
Ramesh
 
Answer
# 7
the purpose of choke in a fluorescent lamp is to increase
the voltage momentarily,
 
Is This Answer Correct ?    10 Yes 2 No
Sabarinathan Frm Sec
 
Answer
# 8
answer 3 is very correct 
Is This Answer Correct ?    23 Yes 16 No
Selvan
 
Answer
# 9
answer 3 is correct 
Is This Answer Correct ?    8 Yes 1 No
Sudibala
 
Answer
# 10
answer 3 very correct 
Is This Answer Correct ?    8 Yes 2 No
Radhakrishnan P.n.
 

 
 
 
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