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 |
In 7-segment display system, zero blanking is used to blank out A All the leading zeros B All the trailing zeros C The zero in the MSB(location) D a and b
The effect of reheating is
Define the signaling massage in telecomincation
why passive components are used in pre emphasis and de emphasis?
i want the aptitude test papers of wipro can any one help plz
How many type of resistor are there in diode?
what is ISDN 1:2or 1:8 ? what is bandwidth allocation? how to the design small network with 4 router?
What are the faults that might come across in PLC ?
what is the difference between electrical and electronic choke.. and whats the main advantage of elecronic choke?
interviewr asked about sampling theorem and i said the common def.(i.e ...sam freq must >=s max freq in the signal for a sampled signal to recover without alising).he asked that i have a sin signal of freq 1hz and i sampled at two zero amplitude points can it be recoverable without aliasing????
What are the advantages & disadvantages between analogue & digital watermarking?
how IDP Qury perform by the B subs MSC for MTC call. If subscriber is in roaming in other state? plz explain briefly