Polystyrene film capacitors, Physics

Assignment Help:

Polystyrene film is extruded flat and free from pin-holes. Film is made from polystyrene granules by extruding heated tube of polymer which is then spread out and stretched state. Heat treatment is given above relaxation temperature after winding film with aluminium foil electrodes. This ensures that the film contracts firmly into contact with electrodes and voids are eliminated. During manufacturing, it is necessary to use dust proof room.

Specifications

Range of values                                                                            up to 1μf

Power factor                                                                     0.0002

Operating voltage                                                                     100V

Temperature coefficient                                                                     -100 to -200ppm/0C

Applications:

(1) Radio frequency tuned circuit.

(2) As storage capacitors in digital equipment.

 (3) In measuring equipment of ionization current of radioactive materials.

(4) In dosage measurement in X-ray therapy.

(5) In long time constant circuits.


Related Discussions:- Polystyrene film capacitors

Kirkwood gaps, Kirkwood gaps (Kirkwood): Gaps in the asteroid belt, ca...

Kirkwood gaps (Kirkwood): Gaps in the asteroid belt, caused through resonance effects from Jupiter. Identical gaps exist in Saturn's rings, because of the resonance effects of

Explain one ohm, 1 OHM: If a potential difference of 1 volt is applied ...

1 OHM: If a potential difference of 1 volt is applied across the ends of a conductor and the resulting current flowing by the conductor is 1 ampere, the resistance of the condu

Two cars in 2-dimensional collision, Two Cars in 2-Dimensional Collision ...

Two Cars in 2-Dimensional Collision Inelastic Collision :  Collisions among objects are governed through laws of momentum and energy. While a collision occurs within an isola

On what factors does the amount of optical rotation depend, Q. On what fact...

Q. On what factors does the amount of optical rotation depend? The amount of optical rotation relay on (a) Thickness of crystal (b) Density of the crystal or else concent

Determine state of calcium atom, Ca has atomic no. 20 and atomic weight 40....

Ca has atomic no. 20 and atomic weight 40. Which of the following statements is not correct about Ca atom: (1)The number of electrons is same as the number of neutrons   (2)

Experiment a model elevator, A model elevator A working model of an ele...

A model elevator A working model of an elevator can simply be made from easy materials. For the rotating drums or sheaves, metal coffee tin will do. With a hammer and a big nai

Interaction of x-rays with matter, Interaction of X-rays With Matter E...

Interaction of X-rays With Matter Elaborating the 3 principle modes through which X-rays interact along with matter. Photoelectric effect, Pair Production Compton Effect,. Sel

Determine concept of galaxy travelling toward earth, An astronomer observes...

An astronomer observes that a molecule in a galaxy travelling toward Earth emits light with a wavelength of 514 nm. The astronomer identifies the molecule as one that actually

Explain tension force (ftens), Explain Tension Force (Ftens) : Force tha...

Explain Tension Force (Ftens) : Force that is transmitted by a string, rope, cable or write when it is pulled tight by forces acting from opposite ends. The tension force is fix

What is least count of stop watch, The least count of the stopwatch is 0.1 ...

The least count of the stopwatch is 0.1 second because in stopwatch we can measure milliseconds also.

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