Special resistor materials: constantan, Physics

Assignment Help:

Constantan: Constantan is a copper-nickel alloy. The amount of nickel in constantan is 40%.

Properties:

1.      It is silver like appearance.

2.      Its electrical resistivity is 5.2*10-8 ohm-m.

3.      Its SPECIFIC gravity is 8.9.

4.      Its melts at 1300 degree c.

5.      The maximum permissible working temperature is about 500 degree c.

6.      It can be drawn into thin wires.

7.      It is highly corrosion resistant.

USES: It is used for making resistance elements for items like loading rheostats and starters for electric motors. It is also used in thermocouples.

 

 


Related Discussions:- Special resistor materials: constantan

Why does the sky appear blue in colour, Q. Why does the sky appear blue in ...

Q. Why does the sky appear blue in colour? As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look o

What do you mean by photo electric effect, What do you mean by photo electr...

What do you mean by photo electric effect? Show the laws of photoelectric effect. Illustrate these laws using Einstein's equation of photo electric effect?

Work, a catapult can hurl a rock straight up in the air 45 m high. What is...

a catapult can hurl a rock straight up in the air 45 m high. What is the maximun range of the catapult?

Evaluate the natural frequency of the body, The differential equation of ...

The differential equation of motion of freely oscillating body is given by 2 d 2 x/dt 2 + 8π 2 x = 0. Evaluate the natural frequency of the body?

Dimensions, what are the application of dimensions?

what are the application of dimensions?

Calculate the number of earth days in one neptune year, A year is explained...

A year is explained as the time it takes for a planet to travel one full revolution around the Sun. One Earth year is 365 days. Calculate the number of Earth days in one Neptu

Write s.i. unit of magnetic flux, Explain electrical conductivity of a cond...

Explain electrical conductivity of a conductor and give its S.I. unit. Write S.I. unit of magnetic flux. Is it a vector or a scalar quantity?

Claculate deviation, A ray of light is incident normally on an equilateral ...

A ray of light is incident normally on an equilateral prism of refractive index 3/2 calculate devition. Ans) since the prism is equilateral therefore angle of prism is 60 0 =

What was the initial velocity of the diver, The high-dive board at most poo...

The high-dive board at most pools is 3.00 m above the water. A diving instructor dives off the board and strikes the water 1.18 s later. a. What was the initial velocity of the

Superfluidity, Superfluidity: The phenomena through which, at sufficie...

Superfluidity: The phenomena through which, at sufficiently low temperatures, a fluid can flow along zero viscosity. Its causes are related with superconductivity.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd