Dielectric constant for mica is nearly_____________?

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 mica is___________?

   A. 10 to 20 kV/mm
   B. 30 to 50 kV/mm
   C. 50 to 200 kV/mm
   D. 300 to 500 kV/mm

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

   A. 0.1 to 0.4
   B. 0.5 to 1.0
   C. 2.0 to 4.0
   D. 5 to 100

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

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

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

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

6. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?

   A. Ceramic capacitor
   B. Mica capacitor
   C. Both will have identical value of capacitance
   D. It depends on applied voltage

7. Mica capacitors are characterized by all of the following except___________?

   A. stable operation
   B. accurate value
   C. low leakage reactance
   D. low losses

8. If mica sheet is placed between the plates of a capacitor the capacity_______________?

   A. increases
   B. decreases
   C. increases then decreases
   D. decreases then increases

9. Dielectric strength _________ with increasing thickness

   A. increases
   B. decreases
   C. remains unaltered
   D. none 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