General Knowledge - Technology - Discussion

9. 

The purpose of choke in tube light is ?

[A]. To decrease the current
[B]. To increase the current
[C]. To decrease the voltage momentarily
[D]. To increase the voltage momentarily

Answer: Option D

Explanation:

No answer description available for this question.

Vignesh said: (Aug 16, 2010)  
How is it possible?

Chinna said: (Dec 13, 2010)  
I heard from someone that the starter is basically a capacitor and it works simillar to the capacitor of a fan. It gives the initial boost to start the tubelight. And the choke is an RL circuit. It filters the line voltage. It only lets 50Hz (or 60Hz) pass through it.

Avik said: (Dec 30, 2010)  
Choke works as a STEP UP transformer. To boost up the line voltage.

Prasad said: (Feb 25, 2011)  
Choke is like a amplifier.

Meghali said: (May 4, 2011)  
Choke is a voltage amplifier.

Amol Joshi said: (Jun 1, 2011)  
Initially during start-up a large potential difference is required in a tube light i.e. across the anode -cathode. So to obtain that large potential difference choke is connected in the circuit. It provides the initial boost of voltage that causes luminescence in the tube.

Gopal said: (Jul 14, 2011)  
Choke is to increase voltage momentary, its one of advantage because to indicate tube in heat level.

Laxmi said: (Jul 25, 2011)  
To cause luminesence in the tubelgt we require large pot. Diff. B/w anode nd cathode. So choke coil is used. In choke coil inductor is used. When ind. Is opened while charging it produces infinite voltage is obtained. So choke coil is used.

Raji. G said: (Nov 11, 2011)  
Choke commenly for two purpose first purpose is induce the high voltage(1000v) between two terminals of the bulb and maintain a reduced voltage(110v) during running.

Gowtham said: (Nov 23, 2011)  
Chock is similar to regulator which maintain constant watts.

T.Shubhender Singh said: (Jan 13, 2012)  
Stater is a capicitor which illuminate tubelight.

Tarun Arora said: (Mar 26, 2012)  
Choke provides a high ramp voltage to the tube light. This high ramp voltage ionise atoms of gas in the tube light. By which conduction takes place.

K S Srivastav said: (Dec 2, 2012)  
As for as my knowledge initially it boosts up the voltage and kept the Frequency maintain.

Umakanta said: (May 21, 2013)  
Voltage is increase by the chock because chock is a stepup transformer. This high voltage is use it ionizes the atoms inside the tube. By this process conduction takes place by two terminals inside tube.

Narendra Reddy said: (Nov 25, 2013)  
Choke provide high voltage and maintain constant watts.

Anil Kumar Yadav said: (Dec 3, 2013)  
The name comes from blocking""choking" high frequencies while passing low frequencies. It is a functional name; the same inductor is often called a "choke" if used for blocking or decoupling higher frequencies, but an "inductor" if used in electronic filters or tuned circuits. Inductors designed for use as chokes are usually distinguished by not having the low loss construction (high Q factor) required in inductors used in tuned circuits and filtering applications.

Jeet said: (Jan 17, 2014)  
If voltage is increased then current automatically decreased. Function of choke is also to decrease the starting current.

Tom Nordahl said: (Mar 29, 2014)  
The choke is a coil, not a transformer, When a current flows, an electrical field is created around the coil. If the current through the coil is removed abruptly the field collapses generating a high voltage due to induction.

The starter causes the abrupt "break" in the current, causing the high voltage.

The high voltage is applied across the light tube, causing a "flash over" in the tube, igniting the gas, making it conductive, leading to ionization, causing luminescence in the inner coating of the tube.

Divya S B said: (Mar 27, 2015)  
Choke is like an inductance hence to decrease the power but how voltage increased momentarily.

Agalya said: (May 3, 2015)  
You can see the fluorescent lamp sometimes it blink because of low voltage.

Suvi said: (Jul 30, 2015)  
Choke is definitely reduce the voltage.

Iyappan said: (Feb 15, 2016)  
Tube Light initially need high voltage, choke is used to increase the voltage.

Jonathan said: (Oct 23, 2017)  
Thanks for the info.

Pavan said: (Jun 8, 2018)  
Choke is like a capacitor when tubellight wants high voltage it will increse the voltage.

Pavan said: (Jun 8, 2018)  
Choke is like a capacitor when tubellight wants high voltage it will increse the voltage.

Pavan said: (Jun 8, 2018)  
Choke is like a capacitor when tubellight wants high voltage it will increse the voltage.

Deepu said: (Oct 15, 2019)  
How choke reduce the voltage?

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