Answer / mahavir jagdev

the choke along with the starter is used to give the high voltage start to the tube light which has heating filaments at both ends to ionize the gas inside. once the tube starts glowing then only 90 volts is required to keep it going, so the starter stops the current flow into the heating filaments and the choke uses it's impedence to absorb the extra voltage from 220 volts to keep the tube light voltage to 90 volts.

What is the safe limit of voltage between earth and neutral in india.

2 Answers   Incepta Pharmaceuticals,

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why synchronization done in clockwise direction?

12 Answers   Hindalco, NTPC,

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what is electrostatic presipitator in thermal power plant,and why it is used?

2 Answers   ACC,

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Find defination of KVA convert in to KW.

4 Answers   ABB,

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WHAT IS RETARDATION TEST IN DC MACHINES?

4 Answers  

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defination of generator

7 Answers  

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from which formula we select a capacitor rating?

4 Answers   Suzlon,

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how to find the ballast lost from the actual wattage? for example i am going to buy decorative type 2x36watts fluorescent light fitting for this lamp how to find the ballast lost? is there any formula?

2 Answers   MEIL,

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why rating of alternator in kva & induction motor in kw

9 Answers   Siemens,

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When testing an earthing connection, we use a 60 or 100 candle bulb with a phase connected direct from supply and the other wire to the new earthing provided.If the bulb glows then the earth is ok.Else earth connection is not Ok. So, why dont we can use all the home appliances taking a single wire from the phase and the return connection to Earth instead of return connection to neutral?

2 Answers  

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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What happen if an alternator rotates in reverse direction?

3 Answers  

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