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

Simple harmonic motion, compotion of two simple harmonic motion at straigh...

compotion of two simple harmonic motion at straight line

Explain the photoelectric effect atomic models, Explain the Photoelectric E...

Explain the Photoelectric Effect Atomic Models Heinrich Hertz first observed the photoelectric effect in 1887. He noticed that if a photon with enough energy is absorbed by an

Explain instantaneous velocity, INSTANTANEOUS VELOCITY: The velocity of...

INSTANTANEOUS VELOCITY: The velocity of a body at a certain instant of time is known as instantaneous velocity.

Electric current, if 36C of charge pass through a wire in 4 seconds what cu...

if 36C of charge pass through a wire in 4 seconds what current is it carrying

Principle of cell , Principle of Cell: To study electrical principles ...

Principle of Cell: To study electrical principles further we require a source of emf. Although an emf can be produced by any of the six methods discussed above, large amounts o

First law of black hole dynamics, Black-hole dynamic laws; laws of black-ho...

Black-hole dynamic laws; laws of black-hole dynamics first law of black hole dynamics For interactions among black holes & normal matter, the conservation laws of mass-

Calculate the frequency of the wave function, Two travelling sinusoidal wav...

Two travelling sinusoidal waves are described by the wave functions Y 1 = 55.00 sin [π (4.00 x - 1200 t )] Y 2 =55.00 sin [π (4.00 x - 1200 t - 0.250)] Where x ,

Compare the resistances, Two resistances have lengths in the ratio 1:4 and ...

Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances. Solution) Given lengths l1=1                          l

Compton effect and quantum nature of light, Q.   Describe Compton effect. D...

Q.   Describe Compton effect. Drive an expression for Compton shift. How does it support the particle nature of light.  Compton Effect and Quantum Nature of Light A.H. Com

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