A dielectric material must be____________?

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. Dielectric strength of a material depends on_____________?

   A. moisture content
   B. temperature
   C. thickness
   D. all of the above
   E. none of the above

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

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

4. The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be____________?

   A. 36 x 10fa
   B. 36 x 107 N
   C. 36 x 108 N
   D. 36 x 109 N

5. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be____________?

   A. 800 uC
   B. 900 uC
   C. 1200 uC
   D. 1600 uC

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

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

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

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

8. Which is the most superior dielectric out of the following ?

   A. Air
   B. Glass
   C. Bakelite
   D. Paper

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

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

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