Answer / tubelight

at the time of starting the current will be very high.
to limit the current choke is used. by mutual induction
choke opposes the rate of change of current. and reduces
the change in current flow.
the high voltage production is only due to the usage of
capacitor.
that only produces high voltage.

Answer / natarajanramkumar

1.It gives high voltage impulse for starting the lamp(about
1000 volts while starter opens)
2.Its gives low voltage(110V)while running.
3.It acts ballast.Ex.smoothens the current when the lamp is
running.

Answer / neeraj kumar dhillon

WHENEVER THE SUPPLY IS GIVEN TO THE TUBE
THE CHOKE WILL GIVE SUPPLY OF 1000V TO THE TUBE AND
TUBE GET IONISED AND FINALLY GLOWING ONCE IT STARTS
AFTER THAT STARTER IS OUT OF CIRCUIT

Answer / moin

I think choke limits the current when current flows through
the ionized gas

Answer / madhu

when tubelight is on , due to choke voltage is increased to
1000 v and the gas in the tube light is ionised at this high
voltage . to ionise the gas in the tube light we use choke

Answer / akshneel sharma

IT IS USE TO PROVIDE VOLTAGE . APROX 1000 - 1500

Answer / ekta sengar

choke is a combination of inductor and resistance used to
maintain the sufficient voltage required by the tube light,
after the starter has already provided the high initial
voltage to start the tube light.

Answer / anand biradar

Choke provides high viltage(nearly 1000v) at starting
time . later on it regulates the voltage.

Answer / yuvaraj

it provides high voltage at the time of starting and
regulates the voltage at the time of glowing.

Answer / sanjay

what is the function of bimetallic element ??

Why not connect relay Y phase for over current and earth fault

1 Answers   HB,

You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

Suppose i Have an Ac motor of 25Hp 1500 Rpm 50 Hz Can i run a motor 2500 Rpm by AC drives by increasing a frequency either it safe or not ....

2 Answers  

Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

0 Answers  

The error in a single phase energy meter where pressure coil lags behind applied voltage by 88 degrees and pf is 1) upf 2).5lag

1 Answers   GATE,

in thermal power plant the steam produced is made to cool after falling on the turbine blades. my question is why this is done while the same is needed to heat up again. "jab pani ko wapis garam hi karna hai to thanda kyu karte hai"

11 Answers   Bhel,

TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?

0 Answers  

how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor

2 Answers   Vizag Steel,

What is the output of a transformer..??

1 Answers   Jindal,

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

0 Answers   OEG,

Why voltge arev transformed in to 132KV/66/KV/33KV like that

5 Answers   HAL,

What is water cooled chiller plant?

1 Answers   Gulf, IOCL,