How one can say about a device (e.g: a light holder contains 20 or 30 L.E.Ds which glows when power supply is off, from which source they are getting the supply..... battery or capacitor) without removing and opening up its case ?

1 Answers   CMC,

---

is it possible to give the total load from the supply generator's maximum in practical?

2 Answers  

---

how to select the surge suppresor for the 33 KV supply and what will be the rating, selection guide

1 Answers  

---

how to operate and maintenance of 1500 kva diesel generator set

0 Answers   Supertech,

---

what is impedence of transformer? its formula

1 Answers  

---

model question paper for supervisor trainee

0 Answers   Bhel,

---

how much current does 3ph. 10 hp ac motor draw.

8 Answers  

---

explain the working principal of the circuit breaker?

5 Answers  

---

why we +ve load distribution in 24v and -ve load distribution in 48volt in the telecom sector.?

2 Answers  

---

Why there is a current in neutral line

3 Answers   Honeywell,

---

how we can select MCB ratings according to Voltages, Curves.

2 Answers  

---

string efficient is 100% what is the voltage across the each disk?

1 Answers  

---