Answer / mubeen saifi

White colour LED is possible. By combining blue,green and
red colour LEDs in one shell. And by maintaining an optimum
temperature because temperature is responsible for colours
on Kelvin scale.

I am mechanical engineer,I need Training in Electrical & Electronics ( i.e. three days workshop training ) Where will I get the same Please suggest?

2 Answers  

---

When a 25kV line touches the train, will passenger get shock?

3 Answers  

---

Why not instal the NGR in 11kv/433kv trasformer?

3 Answers  

---

could i arrange a faulty and healthey battery bank togather in parallel , if your ans is not then why?

3 Answers  

---

i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

0 Answers  

---

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

0 Answers  

---

what is the advantage of pwm pulse compare to squarewave pulse.

2 Answers  

---

capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

5 Answers   Bhel, OPS,

---

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

0 Answers  

---

why 2 phase is used in argc furnace? why 6 phase is used in converting machinery?

1 Answers  

---

1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

0 Answers   L&T, PK,

---

what is the 2MVA distribution transformer efficiency

1 Answers  

---