Carbon composition variable resistor, Physics

Assignment Help:

MANUFACTURING: Two processes are used manufacturing.

Coated film: A mixture of carbon, filler and binder is coated on a ring of insulating material. The surface of the film is processed to minimize abrasion of the film by the sliding contact tap. The contact is of brass or phosphor bronze. The contact is sparing loaded against element.

SPECIFICATIONS

Range of values                                                100 ohms to 10 mega ohm

Power rating                                                      1/2W to 2.5W

Tolerance                                                         20% for 100 ohms to 1 mega ohm

                                                                       30% above 1 mega ohm

Voltage coefficient                                             0.005% volt

APPLICATIONS: These are used as present potentiometer in TV, in brightness and contrast control, radio and measuring instruments.

 

 


Related Discussions:- Carbon composition variable resistor

Resolution of forces by calculation, Resolution of Forces by Calculation: ...

Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two

Identify and state the dissimilar types of energy, A ball of mass 0.7 kg is...

A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of

Nucleons together in a nucleus, What does held nucleons together in a nucle...

What does held nucleons together in a nucleus? Nuclear force. It is the nuclear force which fasten the nucleons together and is responsible for the stability of nucleus.

Complete spectrum of all forms of electromagnetic radiation, Q. Illustrate ...

Q. Illustrate that does the solar radiation contain a complete spectrum of all forms of electromagnetic radiation? Answer:- It is true that it does. It holds all the forms

Grandfather paradox, Grandfather paradox: A paradox proposed to discou...

Grandfather paradox: A paradox proposed to discount time travel & revel why it violates causality. Say that your grandfather constructs a time machine. Currently, you employ h

Transistors, Construction of Depletion type of MOSFET

Construction of Depletion type of MOSFET

Michelson interferometer, how Michelson interferometer can be used to measu...

how Michelson interferometer can be used to measure the wavelength of sodium light.

Why don''t diode as a battery?, Why because it is not a source as Li-ion ba...

Why because it is not a source as Li-ion battery. If we want to measure the voltage(build in voltage) with in the diode we have to use the external source. We can''t directly measu

What is addition reaction, When atoms (or) group of atoms are added, to for...

When atoms (or) group of atoms are added, to form more saturated compound it is known as addition reaction.

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