Characteristics of capacitors, Physics

Assignment Help:

(1)         CAPACITANCE: The value of capacitance depends upon the area of conducting plates, thickness of dielectric material and its permittivity. The frequency of operation of a capacitor depends upon the dielectric type used.

(2)         WORKING VOLTAGE: It is defined as the maximum voltage at which capacitor can operate without failure. The working voltage is usually rated as dc value. Effective ac. working voltage is less than the DC rated voltage. Working voltage decreases with rise in frequency of operation. Working voltage mainly depends upon the dielectric strength of the material used in capacitor

(3)         TEMPREATURE COFFICIENT: It is measured in ppm /0C and indicates change in capacitance due to temperature. it is generally positive.

(4)         VOLTAGE COFFICENT: Voltage coefficient indicates change in value of capacitance with voltage. it is either expressed in percentage or ppm/V.

(5)         TOLERNCE: This is the accuracy to which value of capacitor can be made or selected. Various tolerances are available and they depend upon the type of capacitor.

(6)         LOAD LIFE STABILITY: The change in value of capacitance alters a stated operating time at full load and 700C. The operating time is usually taken as 1000 hours.

 

 


Related Discussions:- Characteristics of capacitors

Inelastic scattering (raman''s effect), Under particular condition, light c...

Under particular condition, light can also suffer inelastic scattering from molecules in which it's wavelength changes.

Clamper, please discuss problem related to clamper.

please discuss problem related to clamper.

Eddy current loss is proportional to the how much frequency, Eddy current l...

Eddy current loss is proportional to the (A) Frequency.                       (B) Square of the frequency. (C) Cube of the frequency.    (D) Square-root of the frequency.

Produce a schematic diagram of the system, Produce a schematic diagram of t...

Produce a schematic diagram of the system: The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam fr

What is photo-voltaic cell, It having of a Cu plate coated with a thin laye...

It having of a Cu plate coated with a thin layer of cuprous oxide (Cu2O). On this plate is laid a semi transparent thin film of silver. When light fall, the electrons emitt

De-broglie wavelength, According to de-Broglie theory, the wavelength of de...

According to de-Broglie theory, the wavelength of de-Broglie wave is given by Where h = Plank's constant, m = Mass of the particle, v = Speed of the particle, E = Energy of

Determine performance of program, In order to determine performance of prog...

In order to determine performance of program normal form of analysis of program is to just calculate total amount of CPU time needed to execute different part of program it implies

Relation between the electric displacement and current, Derive the relation...

Derive the relation between the magnitude of electric displacement and displacement current.

Relative permitivity, It is a measure of the extent up to which a materia...

It is a measure of the extent up to which a material concentrates electrostatic lines of flux. It is the amount of the stored electrical energy when a potential is applied, relat

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