Capacitor construction, Physics

Capacitor have thin conducting plates (usually made of metal) separated by a layer of dielectric, then stacked or rolled to form a compact device. Many types of capacitors are available commercially, with capacitors ranging from the Pico farad range to more than a farad, and voltage ratings up to many kilowatts. In common, the higher the capacitance and voltage rating, the bigger the physical size of the capacitor and the higher the cost. Tolerances in capacitances value for discrete capacitors are usually specified as a percentage of the nominal value. Tolerances ranging from 50% (electrolytic types) to less than 1% are commonly available. Another figure of advantage for capacitors is stability with respect to time and temperature, at times called drift. Variable capacitors are generally less stable then fixed types. 

Posted Date: 7/9/2012 6:01:46 AM | Location : United States







Related Discussions:- Capacitor construction, Assignment Help, Ask Question on Capacitor construction, Get Answer, Expert's Help, Capacitor construction Discussions

Write discussion on Capacitor construction
Your posts are moderated
Related Questions
Two travelling sinusoidal waves are described by the wave functions Y 1 = 55.00 sin [π (4.00 x - 1200 t )] Y 2 =55.00 sin [π (4.00 x - 1200 t - 0.250)] Where x ,

diffenrence between pure and impure spectrum.

Ratio of masses of proton and electron is: (1) Infinite (2) 1.8x10 3     (3) 1.8         (4) None of these Ans: (2) 1.8x10 3

Example of an impure spectrum

Ask question #Minimum 100 words how is temperature coefficient of resistance helpful to mankind?accepted#

Capacitor construction: FIXED CAPACITORS Fixed capacitors usually consist of sheets of metal foil between which is sandwiched the dielectric, or alternatively the metal, s

Aluminium is (A) Silvery white in colour.   (B) Yellow in colour. (C) Reddish in colour.            (D) Pale yellow in colour. Ans: Aluminium is Silvery white in c

how many pumps does the heart pumps

At 200.0 K, silicon has 3.79 x 10 -18 free electrons per atom. How many free electrons/cm 3 are there in silicon at this temperature?

Active network:- It can be described as a network, which contains one or more than single source of e.m.f. in it.