Which is the most superior dielectric out of the following ?

Related Mcqs:

1. 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

2. Which of the following materials has the highest value of dielectric constant___________?

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

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

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

4. The dissipation factor of a good dielectric is of the order of____________?

   A. 0.0002
   B. 0.002
   C. 0.02
   D. 0.2

5. When a dielectric is placed in an electric field the field strength____________?

   A. decreases
   B. increases
   C. reduces to zero
   D. remain unchanged

6. Which medium has the least dielectric strength ____________?

   A. Paraffin wax
   B. Quartz
   C. Glass
   D. Air

7. Dielectric strength _________ with increasing thickness

   A. increases
   B. decreases
   C. remains unaltered
   D. none of the above

8. When the dielectric is homogeneous,the potential gradient is_____________?

   A. uniform
   B. non-uniform
   C. zero
   D. any of the above

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

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

10. When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will______________?

    A. remain uncharged
    B. decrease
    C. increase
    D. become zero