Question

If the dielectric constant of a substance is K =$\dfrac{4}{3}$ then the electric susceptibility $φ_e$ is:
A. $\dfrac{1}{3}$
B. 3
C. $\dfrac{4}{3}$
D. $\dfrac{3}{4}$

Answer 1

Since we have to find the Electric susceptibility ( $φ_e$ ). So, using the formula of electric susceptibility we can easily find out the answer.
Where $φ_e$ = K – 1

Complete step-by-step answer:
As given
Dielectric constant (K) = $\dfrac{4}{3}$
Where we have to find electric susceptibility ( φe )
So using formula
$φ_e$ = K – 1
so putting the values of Dielectric constant (K) in the equation,
$φ_e$ = $\dfrac{4}{3}$ - 1 (k = $\dfrac{4}{3}$)
$φ_e$ = $\dfrac{{4 - 3}}{3}$
$φ_e$ = $\dfrac{1}{3}$

Note:-
1. Dielectric constant is also known as relative permeability.
2. Relative permeability: It is the ratio of material permeability to the permeability of the free space or vacuum.