Answer / thowsif_emerson

A potentiometer is a three-terminal resistor with a sliding
contact that forms an adjustable voltage divider.[1] If
only two terminals are used (one side and the wiper), it
acts as a variable resistor or Rheostat. Potentiometers are
commonly used to control electrical devices such as a
volume control of a radio.


For more information log on to:-
http://en.wikipedia.org/wiki/Potentiometer

why should we place 9KV lightning arrestors in 11KV substation ?

9 Answers   DOL, ISRO, Matrix,

---

what is form factor.and rms value..

1 Answers   IIM, Torrent Power,

---

difrent between vcb acb sf6 and mccb breakers

1 Answers   DMRC,

---

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

---

why ht cable end termination don't have a gland?

0 Answers   Private,

---

Why synchorised generators are used for the production of electricity?

0 Answers  

---

What is a DC series motor?

0 Answers   Ericsson,

---

if we give 60 hz single phase supply to the transformer used in europe , than what will happen

0 Answers   Core Logic,

---

The ohm is the unit of:(a) Charge(b) Resistance(c) Power(d) Current

2 Answers  

---

Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

---

what is the working principle of induction motor

2 Answers  

---

draw tube light circuit

0 Answers   Badve, KPTL,

---