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

Ultrasonics, explain briefly about piezoelectric effect to produce ultrason...

explain briefly about piezoelectric effect to produce ultrasonics

Electricity., what should be the length of a nichrome wire of resistance 45...

what should be the length of a nichrome wire of resistance 45 ohms if the length of a similar wire is 60 cm and resistance is 25 ohms

How fast must a spacecraft travel relative to the earth, How fast must a sp...

How fast must a spacecraft travel relative to the earth for each day on the spacecraft to correspond to 2d on the earth? By standard equation, for the time t to the earth to co

Inclined plane frictionless motion help, A block initial located 3m up a fr...

A block initial located 3m up a frictionless inclined plane is given an initial velocity of 6m/s up the ramp. The plane is 10m long and titled by 30 degree. a) How long does it tak

Motion , 4 dimenestional motion examples

4 dimenestional motion examples

Electrostatic, two insulated charge Cu spheres A and B OF IDENTICAL size ha...

two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa when they are brought in contact with each other and separated,what are new charge on them

Comparison among types of harmonic motion, Can you give the graphical compa...

Can you give the graphical comparison among the following three kinds of harmonic motion: i. Under damped harmonic motion ii. Over damped harmonic motion iii. Critically

Hvac, determine the pressure of a 20 lb force applied to an area of 10 inch...

determine the pressure of a 20 lb force applied to an area of 10 inch squared

Find the ratio of radii of the two wires, Q. Two wires of same material and...

Q. Two wires of same material and same length have resistances 5 and 10 respectively. Find the ratio of radii of the two wires. R = ρl / A = ρl / πr 2  R 1 = ρl / A = ρl

Does gravity can bend light?, YES GRAVITY CAN BAND LIGHT e.g. GRAVITY OF...

YES GRAVITY CAN BAND LIGHT e.g. GRAVITY OF BACK HOLE IS VERY STRONG

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