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

Physics assignment, A 32.53 N light hangs at equilibrium from two cables at...

A 32.53 N light hangs at equilibrium from two cables at angles 78.3 and 60.2 with respect to the ceiling. What is the tension in the first cable?

Magnetism, when a soft iron piece is buried under the surface of earth in t...

when a soft iron piece is buried under the surface of earth in the north south direction why the iron piece show properties of a magnet

Physics, the magnitude and direction of acceleration of body both are const...

the magnitude and direction of acceleration of body both are constant will the body moves in straight line

Isochoric process of thermodynamic, A thermodynamic process, in which the v...

A thermodynamic process, in which the volume of gas always same is known as isochoric process. In this process, the work completed by the body is zero. Therefore from first law

Rutherford''s Experiment , My question is that if voltage is increased, the...

My question is that if voltage is increased, the electrons will move faster and the distance between them is changed. Why?

Traingle law, derive the triangle law of vector

derive the triangle law of vector

Determine the self inductance of the coil, What do you mean by transformer ...

What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.

Magnetic force on a moving charge, Magnetic force on a moving charge Oers...

Magnetic force on a moving charge Oersted also discovered that anytime a charge is moving in an area where a magnetic field exists, it experiences a force which is sometimes call

What are solid core or multicore, What are Solid core or multicore? It ...

What are Solid core or multicore? It will depend on the use to that the optic is put and the actual installation conditions. Solid core optics has usually, a larger bending rad

Determine the total circuit resistanc, Two resistors, of resistance 3 and ...

Two resistors, of resistance 3 and 6, are connected in parallel across a battery having a voltage of 12V. Determine (a) The total circuit resistance and (b) The current ?

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