Which factor decide the colour of the light emitted from a
Led?
Answer Posted / yuvi
The colour of an LED is determined by the semiconductor
material used in it
| Is This Answer Correct ? | 14 Yes | 6 No |
Post New Answer View All Answers
What is limitedly stable system?
What is the function of interposing current transformer?
Why we use duplex coil and hook switch in telephone system?
how to wiring it with contactor and timer together
before synchronizing an alternator,power factor is leading ,why?
I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
Pls mail me utility & Dg related question with answer
What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
Where servomechanism is used?
please send me previose rrb junior engineer qustion papers
How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.
What are the essential characteristics of signal flow graphs?
the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?
How to discuss the phase shift of transformer considering open delta?
I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?