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ferroelectrics have strong magnetic field and also magnetic susceptibility & permeability value are strong (>1) but dielectric have feebly magnetic field & it have lesser value.

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Why an insulator is also called dielectric?

An insulator is also called a dielectric because it is a material that does not conduct electricity easily due to its high resistance to the flow of electric current. Dielectrics are used in capacitors to store and release electrical energy. When placed in an electric field, dielectrics become polarized, creating an electric dipole moment that affects the overall behavior of the material in the field.


How lasers and ordinary light different?

Lasers produce coherent and focused light of a single wavelength, while ordinary light sources emit incoherent light of various wavelengths. Lasers also have a much higher intensity and can be tightly focused over long distances compared to ordinary light sources. Additionally, lasers have a very narrow beam divergence, whereas ordinary light sources have a broader dispersion.


Why ordinary light is not coherent?

Ordinary light is emitted from various sources with different phases and wavelengths, leading to random and constantly changing interference patterns. This lack of a fixed phase relationship between light waves prevents ordinary light from being coherent. Coherent light sources, like lasers, have a single wavelength and phase, allowing for stable interference patterns.


Why can't metal be used as a dielectric in a capacitor?

Metal cannot be used as a dielectric in a capacitor because metals have low resistivity and would conduct electric currents instead of storing electrical energy. Dielectrics in capacitors need to have high resistivity to block the flow of electric current between the capacitor plates and store electrical energy in an electric field.


What is refractive indices of uniaxial crystals?

Uniaxial crystals have two different refractive indices: ordinary index (no) and extraordinary index (ne). The ordinary index is the same in all directions, while the extraordinary index varies depending on the direction relative to the optic axis of the crystal. This anisotropic behavior is a characteristic feature of uniaxial crystals.

Related Questions

What has the author D Das Gupta written?

D. Das Gupta has written: 'Proceedings of the Twentieth British Dielectrics Society Meeting on Ferroelectrics and Related Dielectric Phenomena in Ordered Material' 'Technology transfer in agriculture' -- subject(s): Agricultural innovations, Economic aspects of Agricultural innovations


What group of rock forming minerals are used as dielectrics in heating elements etc?

The micas are used as dielectrics.


What has the author Spartak Gevorgian written?

Spartak Gevorgian has written: 'Ferroelectrics in microwave devices, circuits and systems'


What has the author Stanley Whitehead written?

Stanley Whitehead has written: 'Dielectric phenomena' -- subject(s): Dielectrics 'Dielectric breakdown of solids' -- subject(s): Dielectrics


Will zirconate conduct electricity?

I suppose that zirconate are dielectrics.


Group of rock forming minerals used in dielectrics?

Mica


What has the author B K P Scaife written?

B. K. P. Scaife has written: 'A new method of analysing dielectric measurements' 'Principles of dielectrics' -- subject(s): Dielectrics


How is moraine different from an ordinary hill?

a moraine is taller than a ordinary hill


What has the author Arthur R Von Hippel written?

Arthur R. Von Hippel has written: 'Dielectrics and Waves (Artech House Microwave Library)' 'Dielectric materials and applications' -- subject(s): Dielectrics


Electromagnetic waves in lossless dielectric and lossy?

plane waves in lossy dielectrics


Why are dielectrics used in electronic devices?

to make capacitorsto make coaxial cableetc.


Is Lent an Ordinary Time in the Catholic Church?

No, Lent is a different liturgical season from Ordinary Time.