Answer / raji g

if a spark take a path on the air that is called arc..
normally spark occurring time less than that of arc time

Answer / sanjay kumar shrivas

In both case the dielectric strength of the air gets break and because of that so many ions ll come into the picture... And those ions will provide a conducting path..thats why we use to see spark or arc..... But the difference between arc and spark is totaly related to the duration for which they are occuring...spark is for short time and arc is for long time

What is the type of feedback used in an op- amp schmitt trigger?

0 Answers  

---

How to find knee point voltage in current transformer?

2 Answers   TCS,

---

How a band pass filter is constructed?

0 Answers  

---

what is protection class current transformer.

1 Answers   Matrix,

---

why we are not earthing ht cable at both the ends(sending & receiving end)?

5 Answers   Essar,

---

What is the basic of DTH.

0 Answers   IOCL,

---

What is differance between alternator and generator?

4 Answers   IOCL,

---

how to measure winding resistance of single phase motor?

1 Answers   Adani, Dodsal,

---

which type of motor is suitable for water pump?

1 Answers   IIM,

---

How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx

0 Answers   Bhel,

---

How to calculate KW saving for power factor correction from 0.92 to 0.98 at 350KW load?

5 Answers   Heidelberge Cement,

---

why we are using auto transformer in sub station mostly???

2 Answers  

---