Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


will a fluorescent bulb work when dc is passed through it??
if not why??

Answers were Sorted based on User's Feedback



will a fluorescent bulb work when dc is passed through it?? if not why??..

Answer / n.jena

Yes,a
fluorescent tube
work on DC
supply,if we
will give a
resistance to
choke in series
connection.for
40watt bulb-166
ohm .

Is This Answer Correct ?    29 Yes 0 No

will a fluorescent bulb work when dc is passed through it?? if not why??..

Answer / debojyoti ghosal

Fluorescent lamps can run directly from a direct current (DC) supply of sufficient voltage to strike an arc. The ballast must be resistive, and would consume about as much power as the lamp. When operated from DC, the starting switch is often arranged to reverse the polarity of the supply to the lamp each time it is started; otherwise, the mercury accumulates at one end of the tube.

Is This Answer Correct ?    9 Yes 0 No

will a fluorescent bulb work when dc is passed through it?? if not why??..

Answer / dwivedi sandeepdhar

no because inductive reactance is zero

Is This Answer Correct ?    3 Yes 13 No

will a fluorescent bulb work when dc is passed through it?? if not why??..

Answer / rupali burnwal

no.because the density of the filament of the fluorescent
lamp is very high for the DC supply.hence DC voltage will
not glow the lamp

Is This Answer Correct ?    1 Yes 15 No

Post New Answer

More Electrical Engineering Interview Questions

what is need of air gap in expansion section in busbar?

3 Answers  


Pl. brief about break-down maintenance of machine tool.

0 Answers  


If two induction motors A and B are identical except that the air-gap motor 'A' is 50 % greater than that of motor 'B', then

2 Answers   Lanco,


whow we find out dc motor field aur armature resistance

1 Answers  


What is mean by STUB protection?

0 Answers  


why double earthing is required for welding machine & electrical tools.

7 Answers  


HOW TO DO GRID EARTHING IN INDUSTRIES FOR A PRODUCTION BUILDING

3 Answers   Timken,


what is the difference between pvc & fiber glass cables

0 Answers  


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,


after syncnhronistion how generator speed controlled by grid

3 Answers  


What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?

2 Answers  


What is the starting current of a DC Motor?

2 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4456)
  • Electrical Engineering Interview Questions Electrical Engineering (16639)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)