What is the working principle of CFL& T5? How these glows?



What is the working principle of CFL& T5? How these glows?..

Answer / sudz

CFL-Compact Florescent Lamp,work as followz..
Cfl has an electronic circuit built in with smal
transformer+two electrodes+Murcury gas insid tub+phosphorus
coting at outer of tube.. Whn 220-240 V gets in,electrons
enjected inside the tube having sufficient energy,collides
wid mucury particals=>Looses energy and comes at stable
state=>Releasing PHOTONS in ultravilot(NOT VISIBL)region..To
make PHOTONS to visibl,these photons collide with phosporus
coted tube..Now again as e- looses energy,the released
PHOTONS comes under VISIBLE region...And thus IT GLOWS...GOT
IT???


Thanx

Is This Answer Correct ?    4 Yes 0 No

Post New Answer

More Electronics Communications Interview Questions

L&T APFC Relay model etacon L8 fault: Initial power factor is 0.6 when capacitor is on, the value of power is getting down, please let me know the reason and rectification details.

1 Answers  


What is the output power of a BTS, in dbm &watts if trx=2+2+2... if trx=4+4+4..

0 Answers   Ericsson,


modern capacitors which have high capacitance in small size use a dielectric of?

4 Answers   BSNL,


wat power transmitter we use in radar n explain its principle??

0 Answers   BEL,


send me syllubus of AAI exmatation

0 Answers   AAI Airports Authority Of India, TCS,






I have recieved an interview call from HECL that is Heavy Engineering Corporation Ltd, Ranchi , Jharkhand. Can you please provide me some Electronics and Communication questions for preparation as early as possible since I am left with just one week.

0 Answers  


How will u plan a grounding network for a nw plant....

0 Answers   Reliance,


What is meant by forced commutation?

0 Answers  


smtp?

3 Answers  


clock frequency of 8051 microcontroller.

35 Answers   BBH, BEL, ONGC, Practical Viva Questions,


what is ISR? what is the return value of ISR?

0 Answers  


Why 440 volts instead of 660 volts in 3 phases of supply system?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • 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)