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

Find the discharge between the two tanks, Water is draining from tank A to ...

Water is draining from tank A to tank B. The elevation difference between the two tanks is 10 m. The pipe connecting the two tanks has a sudden-expansion section as shown. The cros

Define entropy of ideal gas, Define Entropy of Ideal Gas? A vessel of ...

Define Entropy of Ideal Gas? A vessel of volume V 1 contains N molecules of an ideal gas held at temperature T and pressure P 1. The energy of a molecule may be written in t

Explain non- linear circu, Non- Linear circuit It can be described as t...

Non- Linear circuit It can be described as that circuit whose parameters change with voltage or current.

Giger muller counter (g.m tube), Giger Muller counter (G.M tube) the op...

Giger Muller counter (G.M tube) the operation principle of G.M tube is even small amount of ionization produced by single beta ray entering the tube can trigger discharge ,prod

Calculate the maximum velocity of rocket, A popular toy on the market some ...

A popular toy on the market some years ago was the water rocket. Water (at 10°C) was loaded into a plastic rocket and pressurized with a hand pump. The rocket was released and woul

Defect of vision, defect of vision project work 8&10 pages

defect of vision project work 8&10 pages

Mechanics, to derive expreation for magnitude & direction for the resultant...

to derive expreation for magnitude & direction for the resultant which two are acting at a point

Measurement of refractive index, Hence refractive index µ can be determine ...

Hence refractive index µ can be determine by measuring the diameter of Newton's rings first with air and then with the liquid for same value of m.

Explanation of surface tension, Surface tension can be explained in given p...

Surface tension can be explained in given possible ways: (i)   The property of a liquid on account of which it tends to keep minimum number of molecules in its free surface is d

What torque is required by the bolt, A force of 25 N is applied vertically ...

A force of 25 N is applied vertically at the end of a wrench handle that is 45 cm long to tighten a bolt in the clockwise direction. What torque is required by the bolt to keep the

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