Answer / iamdon

The material of wire and the physical dimnsions are known.

1)From the physical property its resistivity(p)and melting
point can be found out(we need to depend upon techanical
specifications).

2)Resistance(R)of the wire can be calculated using the
relationship with the help of dimensional data
R=(p*l)/A where l=length of wire
A=cross sectional area of wire.
3)For a particular value of current(I)flowing through the
wire,the heat produced can be found by Joules law of
heating as
H=I*I*R.
4)Now we need to look into the ambient temperature in which
the wire is intended to work.After applying Newtons law of
cooling between allowable temperature of wire(considering
some factor of safety) and ambient temperature.We can find
current carrying capacity of wire.

Author:arbelectbit@yahoo.com

how much air gap in induction motor as per the Indian standards?

1 Answers   Coast Guard,

---

how is choose &depending upon the load why?

1 Answers   HCL,

---

what is an impedance & inductance ?

4 Answers  

---

Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

0 Answers   Century Rayon, Mechanical,

---

i am iti student i have project to do. that IS 100MW 220\33KV SUBSTATION I WANT TO KNOW HOW TO START, LIKE CALCULATION, WHAT RATING OF CT,CVT, PT, ISOLATOR LIGHTING ARRESTER WAVE TRAP CIRCUIT BREAKER IN 22OKV SIDE, ALSO TO WARDS 33KV SIDE PLS HELP ME WITH THIS, THIS MY LIFE NOW, I KNOW AUTOCAD, I LIKE TO KNOW HOW TO CALCULATE ALL THE THINGS

3 Answers  

---

If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node a.node A b.node B c. Ground node

1 Answers  

---

why the neutral point of star connnection oscillates?

3 Answers   Avalon,

---

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

0 Answers  

---

why booster transformer is used in sumpners test conducted on transformer????

0 Answers   Cooper,

---

125Kva Dg can take up how much amphere load.

7 Answers   Indian Railways,

---

what is diversity factor ? plzzzzzz describe me

1 Answers  

---

what is the function of choke in tube

1 Answers  

---