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

Good analogy for the movement of charge through a circuit, Question: Re...

Question: Regard as a high school built to handle 1500 students but attended by 2500 students. Between classes the halls are crowded with students moving to their next class. A

Explain force diagrams and addition of forces, Explain Force Diagrams and A...

Explain Force Diagrams and Addition of Forces If you have a piano and your friend offers to help move it, would it be more helpful for him to push with 100 Newtons on the

Kinematics.., a boy jumps from height of 100m?what will be its velocity whe...

a boy jumps from height of 100m?what will be its velocity when it reaches ground?

Rotation motion, What is the difference between circular and rotation motio...

What is the difference between circular and rotation motion

How is a galvanometer converted into an ammeter, Q. How is a galvanometer c...

Q. How is a galvanometer converted into (a) an ammeter and (b) a voltmeter? A galvanometer is transformed into an ammeter by connecting a low resistance in parallel with it. Th

Nicol prism, Q.   Describes the construction of a 'Nicol Prism' and explain...

Q.   Describes the construction of a 'Nicol Prism' and explains its action in converting UPL into PPL. Sol.     Nicol Prism: This is the most simple and elegant polarizer and

What is free fall acceleration, What is free fall acceleration? On eart...

What is free fall acceleration? On earth free fall acceleration is 9.81 meters per second per second or 32.2 feet per second per second, not containing air resistance. Aroun

Optics, determination of suger concentration in water by refractive index

determination of suger concentration in water by refractive index

Average velocity and speed, The average speed of a substance in a given int...

The average speed of a substance in a given interval of time is explained as the ratio of the distance done to the time taken whereas; average velocity is explained as the ratio of

How are appliances , How are appliances we use in the domestic circuit inte...

How are appliances we use in the domestic circuit interlinked? What are the benefits of this connection?

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