Question

To obtain a high value of capacitance, the permittivity of dielectric medium should be

Answer 1

The expression of capacitance is given as Where ε is the permittivity of the medium. Hence it is seen that the capacitance of a capacitor is directly proportional to the permittivity of the medium used as dielectric. Therefore to obtain a high value of capacitance, the permittivity of dielectric medium should be high.

Answer 2

Answer:

To obtain a high value of capacitance, the permittivity of dielectric medium should be high.

Explanation:

As can be seen, a capacitor's capacitance directly relates to the permittivity of the dielectric material. Therefore, a high permittivity of the dielectric medium is required to get a high amount of capacitance. A capacitor's capacitance value and impedance are negatively correlated.

What does a dielectric medium's permittivity mean?

The ratio of the electric field within a material to the associated electric displacement is known as dielectric permittivity (): D → = ε E → bounded electrical charges of opposite signs will attempt to separate from one another when subjected to an electric field. Since metals are thought to have a high dielectric constant, they are also thought to have a high capacitance.

Thus, when an electric field is applied, a material with a high permittivity polarizes more than a substance with a low permittivity, allowing the material to store more energy.