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

Electric potential, is the surface of a conductor is equipotential

is the surface of a conductor is equipotential

What is potential gradient, What is Potential Gradient Magnitude of ele...

What is Potential Gradient Magnitude of electric field at a point on an equipotential surface equal's rate of alter of potential, ΔV, with distance Δx, as point moves perpendic

Important points of standing waves, a) The medium separated up into a numbe...

a) The medium separated up into a number of components. Every part is vibrating up and down as a whole. b) All the molecules in single particular segment vibrate in the same med

Determine magnetic field among two poles of electric motor., (a) A 400mm le...

(a) A 400mm length of conductor carrying a current of 25A is situated at right-angles to a magnetic field among two poles of an electric motor. The poles have a circular cross

Correction of short sightedness, Correction of short sightedness To rem...

Correction of short sightedness To remove this defect a convex lens is used in front of eye.

Electromagnetic, While music is on you will try to oppose the two ear phone...

While music is on you will try to oppose the two ear phone pieces to attract. Task-I: Will they attract? If yes, why so?

What do you understand by end correction, What do you understand by "End co...

What do you understand by "End correction" in resonating air column? What occures to the frequency of a tuning fork a) When it is loaded with a little wax and b) When it is file

Dimension of unit impulse, Dimension of unit impulse DIMENSION ? The di...

Dimension of unit impulse DIMENSION ? The dimension of impulse is [MLT -1 ]

Correspondence limit, Correspondence limit (N. Bohr) The restriction at...

Correspondence limit (N. Bohr) The restriction at which a more general theory decrease to a more specialized theory while the conditions that the specialized theory needs are t

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