Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / pooja
LED is a semiconductor device.LED's are used as indicating lamps in many devices.When LED is forward biased electrons are able to recombine with electron holes with in the device releasing energy in the form of Photons & this is known as Electroluminescene & colour of LED is determined by Energy gap of the Semiconductor.
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Tell me how to calculate knee point voltage? Describe its purpose for differential protection.
Why fet is known as voltage control device?
dummy strain guage
wat is an ethernet
Which one is faster between nand-sr ff and nor-sr ff?
What is single input output interface? How it is different from single ended interface?
why should moser bear india hire you?
What is a multivibrator?
HI, i am jayakumar, a B.E graduate of ECE. i have applied for officer trainee written test exam which is going to be conducted by hindustan petroleum corporation limited. currently the writen test of it, has been postponed from febuary to someother day without releasing the date. i am searching for question related to the writen test that whould be asked during the event of the test. if you possess the questions, pls email it to this id jai_pkp81@yahoo.co.in
checking procedure of i.g.b.yt & diode by multimeter...
What is the difference between an ammeter and a voltmeter?
What are the advantages of load commutated chopper?
What are the functions of base station system (bss)?
4 Stage ripple counter with delay(f/f) 10msec. How much time it takes for a state to change. 4*10=40.
Define lock-inrange, capture range, and pullintime of a pll
