Answer / meenakshi

conductors are the substance that has mobile electrons which
moves from one atom to another CONSTANTLY(juz imagine line
of people passing the ball constantly as they get the ball
to their hand)..but semiconductors are those substance in
which the electrons does'nt move readily unless it is
doped(here distance between the people is large,so people
become lazy to pass the ball...this is case for undoped ..)

Can you explain operating principle of Inverse Definite Minimum Time” (IDMT) relay

2 Answers  

---

What are the effects of armature reaction on a DC machine and discuss the various methods to reduce the effect.

1 Answers  

---

How many no. of earthing pits required for commisioning a new 320KVC DG Set????How????

6 Answers   Emerson,

---

how many joint can done in HT line and what is life of the joint

0 Answers   Micro Labs, Reliance,

---

what will happen if the secondary of current transformer kept open....

16 Answers   KSEB,

---

how to calculate busbar size? if ex:1000amps i need to calculate busbar size and what size of bar?if any example caculation pls give the formulas.

2 Answers  

---

how electronic energy meter works?

2 Answers  

---

Send the control circuit digram of a star delta stater?

1 Answers   L&T,

---

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 Answers  

---

WHAT AC (HI VOLTAGE TEST) VOLTAGE SHOULD APPLY FOR 33KV CABLES.EXPLAIN IN DETAIL

12 Answers   NTPC, Voltech,

---

why noise occurn when transformer is working ?

1 Answers   Honda,

---

What are the methods used to improve powerfactor ?

6 Answers  

---