The dielectric constant (relative permittivity) of glass is given by___________?

Related Mcqs:

1. The potential gradient across the material of low permittivity is than across the material of high permittivity?

   A. smaller
   B. greater
   C. both (A) and (B)
   D. none of the above

2. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________?

   A. 50
   B. 100
   C. 150
   D. 200

3. The relative permittivity of free space is given by__________?

   A. 1
   B. 10
   C. 100
   D. 1000

4. The unit of dielectric strength is given by___________?

   A. V/m
   B. V2/m
   C. m/V
   D. m/V2

5. The relative permittivity has the following units__________?

   A. F/m
   B. m/F
   C. Wb/m
   D. no units

6. The absolute permittivity of free space is given by_____________?

   A. 8.854 x 1(T9 F/m)
   B. 8.854 x 1(T10 F/m)
   C. 8.854 x KT11 F/m
   D. 8.854 x 10″12 F/m

7. Electric force between two point charges in air or vacuum is F. If we replace air or vacuum by an insulator (dielectric) of relative permitivity Cr the force between the charges will_______________?

   A. decrease
   B. increase
   C. remain constant
   D. depends upon composition of dielectric

8. Which of the following material has least value of dielectric constant ?

   A. Ceramics
   B. Oil
   C. Glass
   D. Paper

9. Dielectric constant for mica is nearly_____________?

   A. 200
   B. 100
   C. 3 to 8
   D. 1 to 2

10. The value of dielectric constant for vacuum is taken as____________?

    A. zero
    B. 1
    C. 4
    D. 10