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

Determine the tension in the cable, The tree needs to fall uphill even thou...

The tree needs to fall uphill even though it is leaning downhill.  The felling notch at O is sufficiently large so that the resisting moment at O is negligible.  The trunk above po

Refraction law, Refraction law: For a wavefront travelling by a bounda...

Refraction law: For a wavefront travelling by a boundary among two media, the first along a refractive index of n 1 , and the other with one of n­, the angle of incidence thet

Explain the concept of net force, Muturi is rearranging some furniture. ...

Muturi is rearranging some furniture. He pushes the dresser with a force of 143 N,and there is opposing frictional force of 112 N. What is the net force ?

Magnetic effect of the earth, Magnetic effect of the earth is? Magnetic...

Magnetic effect of the earth is? Magnetic effect of the earth. The earth behaves as it has got a big magnet, running as mot a big magnet, running almost from its north to South

How noisy is an illuminator, How noisy is an illuminator? It is very no...

How noisy is an illuminator? It is very noisy, slightly so or completely silent, depending upon the power source and the construction. There heat dissipation is something which

Inducing a positive charge on a sphere, Inducing a Positive Charge on a Sph...

Inducing a Positive Charge on a Sphere The given below animation depicts the induction procedure. The neutral conducting sphere is at rest on top of an insulating stand. An unh

Inductor construction, An inductor is generally constructed as a coil of co...

An inductor is generally constructed as a coil of conducting material, characteristically copper wire, wrapped around a core either of air or a ferromagnetic material. Core materia

Work, a catapult can hurl a rock straight up in the air 45 m high. What is...

a catapult can hurl a rock straight up in the air 45 m high. What is the maximun range of the catapult?

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