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

QUANTUM MECHANICS, Explain the presence of unmodified radiation in Compton ...

Explain the presence of unmodified radiation in Compton scattering.

how can your weight change?, How Can Your Weight Change? Your weight on...

How Can Your Weight Change? Your weight on Earth, or the force that pulls you toward the ground, is the pull of Earth’s gravity on you. If you want to calculate how many Newtons

The atomic number of an element represents, The atomic number of an element...

The atomic number of an element represents: (1) Number of neutrons in the nucleus   (2) Number of protons in the nucleus  (3)Atomic weight of element  (4)Valency of el

What is index fiber, What is index fiber? How you define the modes in an op...

What is index fiber? How you define the modes in an optical fiber? Give a relation between core diameter and numerical aperture. Ans.:  The index profile of a single mode fi

Rayleigh-jeans law, Rayleigh-Jeans law For any blackbody at thermodyna...

Rayleigh-Jeans law For any blackbody at thermodynamic temperature T, the radiancy R onto a range of frequencies among nu & nu + dnu is provided by R = 2 pi nu 2 k T/c 2 .

Find the tension must this wire be stretched, A steel wire in a piano has a...

A steel wire in a piano has a length of 0.6000 m and a mass of 3.600   10 -3  kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to

.inkjet printer, tell me in detail about inkjet printer???

tell me in detail about inkjet printer???

Graphical representation of potential, When we move from a positive charge ...

When we move from a positive charge towards an equal negative charge along the line joining the two then initially potential reduces in magnitude and at centre changes into zero, b

Objective to exports, Objective After studying this unit, you should be ...

Objective After studying this unit, you should be able to: 1.  explain the importance of international trade; 2.  discuss why a fm is motivated to export; 3.  identify

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