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

Determine change in temperature - temperature, 9.8-g lead bullet with a muz...

9.8-g lead bullet with a muzzle velocity of 3.90 x 10 2 m/s is stopped by a wooden block. What is the change in temperature of the bullet if one-fourth of its original kinetic

Illustrate the term semiconductor laser, Illustrate the term semiconductor ...

Illustrate the term semiconductor laser. Semiconductor Laser (Laser diode): It is a laser wherein semiconductors (characteristically direct band-gap semiconductors) can be u

Calculate the current needed to produce the flux, 1). A ring of outer diame...

1). A ring of outer diameter 80 cm is made from square of cross -section steel bar size(8 *8 cm) . If relative permeability 1200 for steel . calculate the current needed to produce

What is group velocity, The velocity with which the group of waves travels ...

The velocity with which the group of waves travels is called as group velocity or the velocity with which a ray packet goes is called as group velocity

Briefly explain about resonance, Briefly explain resonance? Write down the ...

Briefly explain resonance? Write down the condition of resonance for weak damping?

Define weightlessness, The weight of a body is the force with which it is a...

The weight of a body is the force with which it is attracted in the direction of the centre of earth. When an object is stationary with respect to the planet, its weight equivalent

Explain coulumb''s law, Coulumb's Law: Statement: The magnitude of t...

Coulumb's Law: Statement: The magnitude of the electrostatic force among two point's charges is directly proportional to the product of the magnitude of the charges and inve

Define frozen solid, Define Frozen Solid (Moscow Phys-Tech)? Evaluation...

Define Frozen Solid (Moscow Phys-Tech)? Evaluation how long it will take for a small pond of average depth D=0.5 m to   freeze entirely   in   a   very cold winter, when   the

#PhysicsofVolleyball, Is there a way that you can gain potential energy and...

Is there a way that you can gain potential energy and release kentic energy in Volleyball?

Find the gain in system, For the system shown below the gain, G, of block A...

For the system shown below the gain, G, of block A is variable and can be set as low as 100 and as high as 500. The only problem with block A is that its gain fluctuates with high

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