Question

Is Ebonite A Dielectric.

Answer 1

Hint : We know that the dielectric is a material through which no electric current passes. There are two types of dielectrics, Nonpolar dielectric and polar dielectric. A dielectric material is a substance that is a poor conductor of electricity, but an efficient supporter of electrostatic fields. The materials made by plastic, mica, rubber, glass, wood, and porcelain are all dielectric because current cannot pass through them.

Complete Step By Step Answer:
A capacitor is an electronic component designed to store electric charge. A dielectric material is used to separate the conductive plates of a capacitor. Filling the gap between the plates completely by dielectric material will increase its capacitance by the factor of dielectric constant value. The dielectric constant of a material determines the amount of energy that a capacitor can store when voltage is applied.
Ebonite is a hard rubber obtained by vulcanizing natural rubber for prolonged periods. Ebonite may contain from $25\%$ to $80\%$ sulfur and linseed oil. Its name comes from its intended use as an artificial substitute for ebony wood. Hence Ebonite is a dielectric material. This is because ebonite is a poor conductor of electricity, it is an insulator. Electrons cannot move easily within it, and also it has no free electrons present for conductivity.

Additional Information:
The dielectric constant of a substance is the ratio of the permittivity of the substance to the permittivity of the free space. It expresses the extent to which a material can hold electric flux in it.
It is mathematically expressed as
$K =\dfrac{ \varepsilon} {\varepsilon _0}$
Where, $K$ is the dielectric constant, $\varepsilon$ is the permittivity of the substance and ${\varepsilon _0}$ is the permittivity of the free space.

Note :
Note that when a direct current voltage is applied, the value of the dielectric constant reduces while applying alternating current voltage would increase the value of the dielectric constant. The value of a dielectric constant is always greater than one.
The strength of the dielectric material decreases when either the humidity or the moisture is increased. The structure and morphology of the material also influence the dielectric constant.