Carbon film resistor, Physics

Assignment Help:

MANUFACTURING:

Pure carbon is deposited on ceramic substrate by thermal decomposition of hydrocarbon at 10000C. The sheet resistance of film is controlled by controlling the thickness of the carbon film.

SPECIFICATIONS:

Range of values                                                           1 ohm to 107 ohms

Temperature coefficient of resistance                              -1000pm/0C

Stability                                                                        < 3%

Tolerance                                                                     > 2%

Working voltage                                                            500 volts

Working temperature                                                     -40 to 1200C

APPLICATIONS: These resistors are used in measuring instruments where close tolerances are required. These resistors have better stability compared to carbon composition resistors. Voltage coefficient is small. Temperature coefficient is negative. For small value, size of carbon composition resistor. These resistors have no ability to withstand electrical overloads.


 

 


Related Discussions:- Carbon film resistor

Illustrate briefly the significance of entropy, Illustrate briefly the sign...

Illustrate briefly the significance of entropy? Determine the work done when 2 mole of an ideal gas expands isothermally and reversible from 10 atm. To 2 atm. Pressure at 27 0 C

Sensitive flame method used for detection of ultrasonic wave, How is sensit...

How is sensitive flame method used for detection of ultrasonic waves? Sensitive flame method: A narrow sensitive flame is shifted along the medium. At the situations of anti

What sources electromagnetic radiation, Question: What sources electrom...

Question: What sources electromagnetic radiation (a.k.a. light a.k.a. electromagnetic waves)? select the one BEST answer. Answer: Note the significant distinction betwe

Determine the bending moment, Determine the Shear Force in kN rounded to 1 ...

Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the UDL on the beam is P52 kN/m (as for the previous question

Find the distance between the two cleavage planes, Q. An X-ray diffraction ...

Q. An X-ray diffraction of a crystal gave a closest line at an angle of 6o27'. If the wavelength of X-ray is 0.58Ao, find the distance between the two cleavage planes. 2d Sinθ

Heat transfer per unit mass, An ideal Brayton cycle uses air as a working f...

An ideal Brayton cycle uses air as a working fluid. The air enters the compressor at 101 kpa and 37 C. The pressure ratio of the compressor is 12:1, and the temperature of the air

Describe nor and nand gates, Describe NOR and NAND gates. Provide their tr...

Describe NOR and NAND gates. Provide their truth tables. Discuss the nature of a p-n junction. How does a potential barrier develop at the junction.

Explain law of conservation of momentum, LAW OF CONSERVATION OF MOMENTUM. ...

LAW OF CONSERVATION OF MOMENTUM. "The total linear momentum of an isolated system always constant"                                  OR  "If there is no external force ap

Newton rings, on newtons ring determine the refractive indexl of a liquid

on newtons ring determine the refractive indexl of a liquid

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

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