Answer / nandagopan

This is found in telecom area.most of the phone wires are
copper.its almost exposed to atmosphere,sand and corrode
producing copper oxide this is why copper act as positively
charged ion to act with negatively charged oxygen.so a wire
with a positively charged accelerates corrosion.to slow down
the positive is grounded to give a negative charge.

What is the Powar consumption of fan low speed to full speed? is it same ?

3 Answers  

---

Who is the first Bangladeshi Everest climber? Where is his home district?

1 Answers  

---

power requirement of an l.e.d?

2 Answers  

---

which is best ac or dc

3 Answers  

---

what do you mean by star point.its importance in ct & pt

2 Answers  

---

---

cc of scorpio?

0 Answers   MAHINDRA,

---

why we used stone chips under the transformer area..

2 Answers   SSC,

---

can any one know is sbi interview based on merit or based on roll number

0 Answers  

---

In HT overhead line why should provide top conducter which is not connected whith insulater..?

3 Answers   Essar,

---

what is the RESTART INHIBIT protection?

1 Answers   Thermax,

---

whether Transformer is singly excited or doubly excited machine?

2 Answers  

---

What is the function of Lightning Arrester & Wavetrap in Power system ??

18 Answers   ABB, Bhel, Energy Infratech, Infosys, NTPC,

---