Air capacitor, Physics

Assignment Help:

Air dielectric capacitors are used mainly as laboratory standards of capacitance for measurement purposes. The insulating material used in these capacitances is fused silica and the whole capacitor is shielded in the metal case. They are very accurate (0.01 to 0.02%) but their size is large. The construction is parallel plate or concentric cylinder type. Plates are circular, square or triangular in shape. These metallic plates are insulated from each other and separated by air.

Specifications

Range of values                                                                     50pf to 10000pf

Tolerance                                                                     0.01 to 0.05%

Temperature coefficient                                                                     10ppm/0C

Applications: As residual inductance and resistance is low, they can be used at high radio frequencies. Also can be used a high voltage laboratory standards.

 

 


Related Discussions:- Air capacitor

Define distance, The real length of path traversed by a body in a sub inter...

The real length of path traversed by a body in a sub interval of time is called as distance. It is the real path travelled by an object among its final and initial positions. It is

Wire wound resistor, MANUFACTURING:   The resistance element is use...

MANUFACTURING:   The resistance element is used as a wire, made from special alloys, which have small low temperature coefficient and good stability against environmental c

Evaluate the magnitude and direction of the total momentum, Two arrows are ...

Two arrows are fired horizontally with the same speed of25.0 m/s. Each arrow has a mass of0.116 kg. One is fired due east and the other due south. Find the magnitude and direction

Find the operating voltage of the coolidge tube, Q. The minimum wavelength ...

Q. The minimum wavelength of X-rays produced in a Coolidge tube is 0.05 nm. Find the operating voltage of the Coolidge tube. λmin = 12400 A 0 / V = 0.5 X 10 -10 m Theref

Magnetic lines of induction and electric lines of force, The potential of e...

The potential of earth is taken as zero. Illustrate What is the difference between magnetic lines of induction and electric lines of force?

Motion, Derive the equation of uniformly acceleration motion by analytical ...

Derive the equation of uniformly acceleration motion by analytical method.

Uniformly charged rod, a) Three charges, every equal to 1 micro coulomb, ar...

a) Three charges, every equal to 1 micro coulomb, are placed at the three corners of a square of side 1 m. Find the electric field at the fourth corner. b) Determine the electri

Relative veloctiy, The velocity of a motor boat with respect to Still Water...

The velocity of a motor boat with respect to Still Water is 7 m/s and the velocity of water in river is 3 m/s. When the boat starts moving upstream, a float was dropped from it.

Time Period, what is the time period of a liquid in U tube ?

what is the time period of a liquid in U tube ?

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