Question

Physics -

Define Dielectric Constant ?​

Answer 1

Answer:

a quantity measuring the ability of a substance to store electrical energy in an electric field.

Answer 2

$\bf{\underline{\underline{\purple{Dielectric\: Constant}}}}$

• It is defined as the ratio of force between two charges in air air to the the force between two charges in medium at same distance

• It is denoted by K

$\huge\sf{\boxed{\boxed{K = \dfrac{\ F_{a}}{\ F_{m}}}}}$

• Value of dielectric constant for these mediums are :-

1. $\sf{\ K_{(air/vaccum)}=1}$
2. $\sf{\ K_{(Hydrogen)}=1.00026}$
3. $\sf{\ K_{(Glass)}=3\:to\:4}$
4. $\sf{\ K_{(Mica)}=3\:to\:6}$
5. $\sf{\ K_{(Water)}=81}$
6. $\sf{\ K_{(Metal)}=infinite}$

• These are the constant value of dielectric constant for these medium there will be different value in different medium.