Answer / yuvi

The colour of an LED is determined by the semiconductor
material used in it

Answer / ragu

THE FACTORS DEPEND UPON THE WAVE LENGTH OR FREQUENCY OF THE
LIGHT EMITTED. IT IS BASICALLY DEPENDS UPON THE CHARGE THAT
IS DISCHARGE DURING THE JUMPING OF ELECTRONS FROM HIGHER
ENERGY LEVEL TO LOWER ENERGY LEVEL..

Answer / kaparapu sreekanth

colour of LED depends on frequency,so colour of light varies by adding impurities while doping

How to design grid earthing

1 Answers  

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motor and transformer working with same principle so why motor rotor was roted and transformer not roted

9 Answers   ABB, Suzlon,

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what shoud be strength and weakness to impress interviewer????????

0 Answers  

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how make to Incident and accident report

1 Answers  

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What is proportional controller?

0 Answers  

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How to check VFD outgoing voltage

1 Answers  

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What is the difference between diode and a transistor in terms of the direction of current flow?

0 Answers  

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how to calculate Amp, 2 different Amp of batteries? Example: No. of Batteries = 2 Battery voltage = 12V 1st Battery rating = 17AH 2nd battery rating = 30AH between parallel connection then output volt 12v Amp?

2 Answers   Bhel, LG Soft,

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why is electricity produced and distributed in multiples of 11. 440V, 11KV, 22KV, 132KV etc

2 Answers   Bhel,

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define reflection method?

0 Answers  

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what is the difference between neutral and earth????

4 Answers  

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What is the role of power pack in substation protection system?

0 Answers   Facor,

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